<PAGE>

================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                               ___________________


                                    FORM 10-Q

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934

                   For the Fiscal Quarter Ended June 30, 2001

[_]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

               For the transition period from _____ to _________.


                         Commission file number: 0-27596
                                                 -------



                                 CONCEPTUS, INC.
             (Exact name of registrant as specified in its charter)



                  Delaware                               94-3170244
      (State or other jurisdiction of                 (I.R.S. Employer
      incorporation or organization)                 Identification No.)

                               1021 Howard Avenue
                              San Carlos, CA 94070
                    (Address of principal executive offices)

       Registrant's telephone number, including area code: (650) 802-7240

                               ___________________


     Indicate by check mark whether the registrant (1) has filed all reports
     required to be filed by Section 13 or 15(d) of the Securities Exchange Act
     of 1934 during the preceding 12 months (or for such shorter period that the
     registrant was required to file such reports), and (2) has been subject to
     such filing requirements for at least the past 90 days.

     Yes  X                                            No ______
         ---
     As of August 9, 2001, 13,690,784 shares of the registrant's Common Stock
     were outstanding.

================================================================================

<PAGE>


                                 CONCEPTUS, INC.

          FORM 10-Q for the Quarter and Six Months Ended June 30, 2001

                                      INDEX

<TABLE>
<CAPTION>
                                                                                                                Page
<S>                                                                                                             <C>
               Facing sheet                                                                                       1

               Index                                                                                              2

Part I.        Financial Information (Unaudited)

Item 1.        a)     Consolidated balance sheets at June 30, 2001 and December 31, 2000                          3

               b)     Consolidated statements of operations for the three and six month periods ended June
                      30, 2001 and June 30, 2000                                                                  4

               c)     Consolidated statements of cash flows for the three and six month periods ended June
                      30, 2001 and June 30, 2000                                                                  5

               d)     Notes to consolidated financial statements                                                  6

Item 2.        Management's Discussion and Analysis of Financial Condition and Results of Operations              8

Item 3.        Quantitative and Qualitative Disclosures About Market Risk                                        11

Part II.       Other Information                                                                                 12

               Signature                                                                                         14

               Index to Exhibits
</TABLE>

                                        2

<PAGE>


                         PART I: FINANCIAL INFORMATION

ITEM 1. Financial Statements

                                 Conceptus, Inc.

                           Consolidated Balance Sheets
               (In thousands, except share and per share amounts)

<TABLE>
<CAPTION>
                                                                           June 30, 2001     December 31, 2000
                                                                           -------------     -----------------
                                                                            (Unaudited)         (Note 1)
<S>                                                                        <C>               <C>
Assets
   Current assets:
     Cash and cash equivalents                                               $  7,717           $  4,621
     Short-term investments                                                     5,801              7,872
     Accounts receivable                                                          163                 --
     Inventory                                                                    483                 67
     Other current assets                                                         452                 59
                                                                             --------           --------

   Total current assets                                                        14,616             12,619
   Property and equipment, net                                                  1,288              1,153
   Other assets                                                                   398                334
                                                                             --------           --------
Total assets                                                                 $ 16,302           $ 14,106
                                                                             ========           ========
Liabilities and stockholders' equity
   Current liabilities:
     Accounts payable                                                        $  1,514           $    983
     Clinical trial accruals                                                    1,306              1,910
     Accrued compensation                                                         537                987
     Other accrued liabilities                                                    402                267
                                                                             --------           --------
   Total current liabilities                                                    3,759              4,147
                                                                             --------           --------
   Commitments

   Stockholders' equity:
     Common stock, $0.003 par value, 30,000,000 shares authorized,             88,034             77,107
        13,574,316 and 11,701,733 shares issued and outstanding at
        June 30, 2001 and December 31, 2000, respectively
     Accumulated deficit                                                      (75,491)           (67,148)
                                                                             --------           --------

   Total stockholders' equity                                                  12,543              9,959
                                                                             --------           --------
                                                                             $ 16,302           $ 14,106
                                                                             ========           ========
</TABLE>

                             See accompanying notes



                                       3

<PAGE>



                                 Conceptus, Inc.

                      Consolidated Statements of Operations
                                  (Unaudited)
                    (In thousands, except per share amounts)

<TABLE>
<CAPTION>
                                                         Three Months Ended                Six Months Ended
                                                              June 30,                         June 30,
                                                     ---------------------------       -------------------------
                                                       2001             2000             2001             2000
                                                       ----             ----             ----             ----
<S>                                                  <C>              <C>              <C>              <C>
Net sales                                            $    163         $     --         $    163         $     --

Operating expenses:
     Cost of sales                                        646               --              646               --
     Research and development                           1,676            1,818            3,865            3,386
     Selling, general and administrative                2,343            1,143            4,397            1,965
                                                     --------         --------         --------         --------
Total operating expenses                                4,665            2,961            8,908            5,351
                                                     --------         --------         --------         --------
Operating loss                                         (4,502)          (2,961)          (8,745)          (5,351)

Recovery of legal defense costs                            --               60               --              513
Interest and other income, net                            215               11              402              189
                                                     --------         --------         --------         --------
Net loss                                             $ (4,287)        $ (2,890)        $ (8,343)        $ (4,649)
                                                     ========         ========         ========         ========

Basic and diluted net loss per share                 $  (0.32)        $  (0.30)        $  (0.67)        $  (0.48)
                                                     ========         ========         ========         ========
Shares used in computing basic and diluted
 net loss per share                                    13,300            9,692           12,521            9,686
                                                     ========         ========         ========         ========
</TABLE>

                             See accompanying notes



                                       4

<PAGE>

                                 Conceptus, Inc.

                      Consolidated Statements of Cash Flows
                                  (Unaudited)
                                 (In thousands)

<TABLE>
<CAPTION>
                                                                     Six Months Ended
                                                                         June 30,
                                                                --------------------------
                                                                  2001              2000
                                                                  ----              ----
<S>                                                             <C>              <C>
Cash flows from operating activities
Net loss                                                        $ (8,343)        $ (4,649)
Adjustments to reconcile net loss to net
   cash used in operating activities:
   Depreciation and amortization                                     342              249
   Stock compensation expense                                         91               --
   Changes in operating assets and liabilities
     Accounts receivable                                            (163)            (213)
     Inventory                                                      (416)              --
     Other current assets                                           (393)             338
     Other assets                                                    (64)             123
     Accounts payable                                                531               80
     Clinical trial accruals                                        (604)             265
     Accrued compensation                                           (450)             (52)
     Other accrued liabilities                                       135              (49)
                                                                --------         --------
Net cash used in operating activities                             (9,334)          (3,908)
                                                                --------         --------
Cash flows from investing activities

   Purchase of investments                                        (4,255)              --
   Maturities of investments                                       6,326            3,992
   Capital expenditures                                             (477)            (278)
                                                                --------         --------
Net cash provided by investing activities                          1,594            3,714
                                                                --------         --------
Cash flows from financing activities

   Net proceeds from issuance of common stock                     10,836               99
                                                                --------         --------
Net cash provided by financing activities                         10,836               99
                                                                --------         --------
Net increase (decrease) in cash and cash equivalents               3,096              (95)
Cash and cash equivalents at beginning of period                   4,621            3,494
                                                                --------         --------
Cash and cash equivalents at end of period                      $  7,717         $  3,399
                                                                ========         ========
</TABLE>

                             See accompanying notes






                                       5

<PAGE>


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)

1.   Basis of Presentation

     The accompanying unaudited consolidated financial statements have been
prepared in accordance with Generally Accepted Accounting Principles for interim
financial information and with the instruction to Form 10-Q and Article 10 of
Regulation S-X. Accordingly, they do not include all of the information and
footnotes required by Generally Accepted Accounting Principles for complete
financial statements. In the opinion of management, all adjustments, consisting
only of normal recurring adjustments, considered necessary for a fair
presentation have been included.

     The balance sheet at December 31, 2000 has been derived from the audited
consolidated financial statements at that date but does not include all of the
information and footnotes required by Generally Accepted Accounting Principles
for complete financial statements. This financial data should be reviewed in
conjunction with the audited financial statements and notes thereto included in
the Company's Form 10-K for the year ended December 31, 2000. The results of
operations for the three months ended June 30, 2001 may not necessarily be
indicative of the operating results for the full 2001 fiscal year.

     Certain amounts in prior periods have been reclassified to conform with
current period presentation. The reclassification had no impact on the Company's
operating result or financial position.

2.   Inventories

     Inventories are stated at the lower of cost or market. Cost is based on
actual costs computed on a first-in, first-out basis. The components of
inventories consist of the following:

     ---------------------------------------------------------------------------
                                       June 30, 2001        December 31, 2000
                                       -------------        -----------------
     ---------------------------------------------------------------------------
     Raw materials                         $ 193                   $ 31
     ---------------------------------------------------------------------------
     Work in process                         126                      8
     ---------------------------------------------------------------------------
     Finished products                       164                     28
                                           -----                   ----
     ---------------------------------------------------------------------------
     Total                                 $ 483                   $ 67
                                           =====                   ====
     ---------------------------------------------------------------------------

3.   Stockholders' Equity

     In April 2001, the Company completed a private placement of approximately
1.64 million shares of newly issued common stock at $7.00 per share, pursuant to
Stock Purchase Agreements dated April 10, 2001. Gross proceeds to the Company
were $11.5 million.


4.   Litigation Cost Recovery

     In June 2000, the Company received an aggregate of $513,000 from its
Directors' and Officers' liability insurance policy for recovery of legal
defense costs in connection with a sexual harassment lawsuit filed against the
Company in December 1997. The payment was recorded as other income.
                                       6

<PAGE>


5.   Computation of Net Loss Per Share

     Basic net loss per share is computed using the weighted average number of
common shares outstanding during the period. Diluted net loss per share is
computed using the weighted average number of common and dilutive common
equivalent shares outstanding during each period. Under the requirements for
calculating basic net loss per share, the effect of potentially dilutive
securities such as stock options is excluded. Basic and diluted net loss per
share are equivalent for all periods presented due to the Company's net loss
position.

6.   Comprehensive Income

     For all periods presented, total comprehensive loss approximates net loss
as unrealized gains and losses were immaterial.

                                        7

<PAGE>


Item 2.    Management's Discussion and Analysis of Financial Condition and
           Results of Operations

          The following discussion should be read in conjunction with the
unaudited financial statements and notes thereto included in Part I-Item 1 of
this Quarterly Report. In addition, the following discussion contains
forward-looking statements within the meaning of Section 21E of the Securities
Exchange Act of 1934, as amended. We wish to alert readers that the risk factors
set forth in our Annual Report on Form 10-K for the year ended December 31,
2000, as well as other factors, including those set forth in the following
discussion, could in the future affect, and in the past have affected, our
actual results and could cause our results for future periods to differ
materially from those expressed or implied in any forward-looking statements
made by us.


Overview

          Since inception on September 18, 1992, we have been engaged primarily
in the design, development and marketing of innovative interventional medical
devices for use in reproductive medicine. Our current focus is to develop
Essure(TM) pbc, a non-incisional permanent birth control procedure for women,
which was previously known as STOP (Selective Tubal Occlusion Procedure). The
Essure procedure is designed to be a less invasive and less costly alternative
to female surgical sterilization, more commonly known as tubal ligation.

          Data from a 1998 United Nations report estimate that 33% of worldwide
reproductive couples using contraception rely on tubal ligation. Furthermore, a
survey performed by the Centers for Disease Control indicates that tubal
ligation is the most prevalent form of birth control in the United States.
According to the study, the prevalence increases with age and number of
children, and 35% of women age 35 - 44 have had a surgical tubal sterilization.
An estimated 700,000 surgical tubal ligations are performed annually in the
U.S., of which 92% are performed in a hospital or surgi-center under general
anesthesia which requires four to five hours of hospital recovery time and three
to ten days before returning to regular activities. The Essure procedure is
based on a unique and proprietary catheter delivery system for minimally
invasive transcervical tubal access. It does not require surgical incisions or
general anesthesia, and hence, it has a rapid recovery time and lower total cost
when compared to tubal ligation.

          We initiated a pivotal trial of Essure in May 2000 at 13 sites
throughout the U.S., Australia and select European countries. The pivotal trial
is designed to obtain 12-month safety, effectiveness and patient comfort data to
support the filing of a Pre-Market Approval, or PMA, application with the FDA.
Submission of the PMA is currently anticipated for the third quarter of 2002. To
date, a total of 464 women have had device placement in both fallopian tubes in
the pivotal trial. Interim data show that, excluding the day of the procedure,
92% of the employed women returned to work in one day or less. Further results
indicate that nearly 60% of Essure pbc patients were back to their regular
physical activities within one day, and within two days 76% had resumed regular
activities. A comparison to laparoscopic tubal ligation was not performed in the
pivotal trial; however, published reports show that women who undergo surgical
tubal ligation - the only permanent birth control option currently available for
women in the U.S. - return to regular physical activities in three to ten days.

          To date, combining interim data from both the pivotal trial and a
Phase II study of the current generation design, more than 400 women years of
effectiveness testing have been achieved without a pregnancy. However, we note
that no method of birth control is 100% effective and pregnancies are expected.

                                        8

<PAGE>


         Essure is listed with Australia's Therapeutic Goods Administration,
which allows us to market and sell in Australia. During the second quarter 2001,
we have implemented an awareness program in Australia directed at general
practitioners and gynecologists focused on patient counseling and referral. This
was necessary because in Australia the general practitioner is required to make
the referral to the gynecologist for woman to have this procedure. In addition,
we initiated a media campaign in June 2001 that generated nationwide coverage of
the Essure procedure in Australia and resulted in significant calls to the
offices of trained specialists. To date, we have trained 40 physicians at 18
sites throughout Australia and expect to train 30 more physicians by the end of
third quarter 2001.

         Besides Australia, we have also received marketing clearance in
Singapore and have begun to sell Essure to one of the largest public hospitals
in Singapore. We will be training additional physicians in Singapore and
anticipate modest revenues in that country through the remainder of 2001. In
February 2001, we received approval to affix the CE Mark to the Essure device,
which indicates that Essure is certified for sale throughout the European Union,
subject to compliance with local regulations. We are currently evaluating
marketing opportunities in Europe, and will select a distribution channel in the
upcoming months. We have trained physicians at eight sites in the U.K. and
France for reimbursement studies and anticipate the reimbursement process to be
completed in early 2002. We expect to make our first commercial sales of Essure
in select European markets in 2002. In the U.S., we intend to begin selling
Essure following FDA approval, which is expected in 2003.

         In addition to the pivotal trial and a Phase II study, we are
continuing our histology studies to examine how the fallopian tube reacts to the
Essure micro-insert and to support the theorized mechanism of action. The
micro-insert elicits tissue in-growth throughout and around the device which
blocks the fallopian tube. The tissue in-growth is expected to result in
long-term device retention and pregnancy prevention.

         We have a limited history of operations and have experienced
significant operating losses since inception. Operating losses are expected to
continue for at least the next several years as we continue to expend
substantial resources to fund clinical trials in support of regulatory and
reimbursement approvals, to conduct research and product development and to
develop appropriate marketing and distribution systems for Essure.

         Future revenues and results of operations may fluctuate significantly
from quarter to quarter and will depend upon, among other factors, the progress
of our clinical trials, actions relating to regulatory and reimbursement
matters, the extent to which Essure gains market acceptance, the ability to
attract marketing partners, the rate at which we establish our domestic and
international distribution network, the ability to scale up our commercial
manufacturing capabilities and the introduction of competitive products.


Results of Operations - Three and Six Months Ended June 30, 2001 and 2000

         Revenues were $163,000 for the three and six months ended June 30, 2001
as compared to none for the same periods in the prior year. In May 2001,
Conceptus initiated its first commercial launch in Australia and the revenues
recorded primarily represent the first Essure pbc sales in Australia.

         Cost of sales for the three and six months ended June 30, 2001 was
$646,000 as compared to none for the same periods in the prior year.

         Research and development ("R&D") expenses decreased 8% to $1,676,000
for the three months ended June 30, 2001, from $1,818,000 for the same period in
the prior year, due primarily to the

                                       9

<PAGE>


completion of pivotal trial patient enrollment. For the six months ended June
30, 2001, R&D expenses increased 14% to $3,865,000, from $3,386,000 for the same
period in the prior year, due to increased activities to improve our
manufacturing processes to enhance productivity, reduce cost, and increase
automation in certain production processes.

         Selling, general and administrative ("SG&A") expenses increased 105% to
$2,343,000 for the three months ended June 30, 2001, and 124% to $4,397,000 for
the six months ended June 30, 2001, from $1,143,000 and $1,965,000 for the same
periods in the prior year, respectively. The increases were primarily due to
marketing efforts to support the commercial introduction of Essure pbc in
Australia and increased administrative costs required to support growth in
marketing and manufacturing activities.

         In June 2000, the Company received an aggregate of $513,000 from its
Directors' and Officers' insurance policy for legal defense costs reimbursement
in connection with a sexual harassment lawsuit filed against the Company in
December 1997. The receipt was recorded as other income.

         Net interest and other income increased to $215,000 and $402,000 for
the three and six months ended June 30, 2001, from $11,000 and $189,000 for the
same periods in the prior year, respectively. The increases were primarily due
to investment income on proceeds provided by the April 2001 private placement.

         We have a limited history of operations. Since our inception in
September 1992, we have been engaged primarily in research and development of
our T-TAC and STARRT Falloposcopy systems and the Essure pbc device, and since
1996, the ERA and FUTURA product lines. In 1998, we suspended efforts on the
T-TAC, STARRT, ERA and FUTURA products and focused our resources solely on the
Essure pbc product. We have generated only limited revenues and have only
limited experience in manufacturing, marketing or selling our products in
commercial quantities. We have experienced significant operating losses since
inception and, as of June 30, 2001, had an accumulated deficit of $75.5 million.
We expect our operating losses to continue for at least the next several years
as we continue to expend substantial resources in research and product
development, market development for Essure pbc and complete our clinical trials.
Due to the expense and unpredictable nature of these activities, there can be no
assurance that we will achieve or sustain profitability in the future.


Liquidity and Capital Resources

         At June 30, 2001, cash, cash equivalents and investments were $13.5
million, compared with $12.5 million at December 31, 2000. The increase is due
to the receipt of $10.8 million of net proceeds from the April 2001 private
placement, offset by $9.3 million of cash used in operating activities and
$477,000 of cash used for the purchase of capital equipment.

         We estimate that our existing capital resources will be sufficient to
meet our requirements into the first quarter of 2002, but will not be sufficient
to fund completion of the pivotal trial nor to commercialize our Essure pbc
device on a wide-scale basis. Our future liquidity and capital requirements will
depend upon numerous factors, including the progress of our clinical research
and product development programs, execution and implementation of partnering
arrangements, the receipt of and the time required to obtain regulatory
clearances and approvals, and the resources devoted to developing, manufacturing
and marketing our products. Accordingly, we will require additional financing
and therefore, will in the future seek to raise additional funds through bank
facilities, debt or equity offerings or other sources of capital. Any additional
equity financing may be dilutive to stockholders, and debt financing, if
available, may involve restrictive covenants. Additional funding may



                                       10

<PAGE>


not be available when needed or on terms acceptable to us, which would have a
material adverse effect on our business, financial condition and results of
operations.


Item 3.  Quantitative and Qualitative Disclosures About Market Risk

         Our cash balances in excess of short-term operating needs are invested
in highly liquid short-term government securities and high quality commercial
paper. Due to the short-term and high quality nature of these instruments, we
believe these financial instruments are exposed to a low level of interest rate
risk.

                                       11

<PAGE>


Part II. Other Information


Item 1.  Legal Proceedings

         There are no material pending or threatened legal proceedings against
the Company. The Company from time to time is involved in routine legal matters
incident to its business. While management currently believes the amount of
ultimate liability, if any, with respects to these actions will not materially
affect the financial position, results of operations, or liquidity of the
Company, the ultimate outcome of any litigation is uncertain.


Item 2.  Changes in Securities and Use of Proceeds

         On April 11, 2001, the Company sold and issued 1,642,858 million shares
of its common stock (the "Shares") for $7.00 per share to certain institutional
and other accredited investors (the "Purchasers") in a private placement
transaction (the "Private Placement") exempt from registration under Regulation
D promulgated under the Securities Act of 1933, as amended (the "Securities
Act"). Pursuant to the terms of certain Stock Purchase Agreements, dated as of
April 10, 2001, by and among the Company and the Purchasers, on April 23, 2001,
the Company filed a Registration Statement on Form S-3, SEC file no. 333-59368,
with respect to certain resales of the Shares by the Purchasers on a delayed or
continuous basis under Rule 415 of the Securities Act. The gross proceeds to the
Company from the sale of the Shares were approximately $11.5 million. These
funds will be used for working capital and are currently invested in
investment-grade instruments.


Item 3.  Defaults upon Senior Securities

         None.


Item 4.  Submission of Matters to a Vote of Security Holders

         The 2001 Annual Shareholders' Meeting was held on May 16, 2001 and the
following votes were obtained, approving all matters proposed to stockholders:

<TABLE>
<CAPTION>
         Proposal 1               Required Vote              Votes for Nominee       Votes Withheld
         ----------               -------------              -----------------       --------------
<S>                               <C>                        <C>                     <C>
Nomination of Directors           Plurality of votes cast
-        Steven Bacich                                       8,398,382               1,201,204
-        Richard Randall                                     9,430,494                 169,092

<CAPTION>
         Proposal 2               Required Vote              For            Against     Abstain
         ----------               -------------              ---            -------     -------
<S>                               <C>                        <C>            <C>         <C>
Appointment of Ernst &            Majority of votes cast     9,550,986      23,100      25,500
Young as Independent Auditors

<CAPTION>
         Proposal 3               Required Vote              For            Against     Abstain
         ----------               -------------              ---            -------     -------
<S>                               <C>                        <C>            <C>         <C>
Approval of 2001 Equity           Majority of votes cast     3,683,196      1,637,922   13,775
Incentive Plan
</TABLE>

                                       12

<PAGE>



Item 5.  Other Information

         In response to the SEC's recent adoption of Rule 10b5-1 under the
Securities Exchange Act of 1934, certain officers of the Company have entered
into trading plans for systematically selling of a portion of their shares of
Common Stock. The officers who have entered into trading plans include Steven
Bacich, Chief Executive Officer; Cindy Domecus, Sr. VP of Clinical Research and
Regulatory Affairs; Ashish Khera, VP of Research and Development and Oliver
Brouse, Director of Marketing. The Company anticipates that, as permitted by the
new Rule 10b5-1 and the Company's inside trading policy, some or all of its
officers, directors and other insiders may establish trading plans at some date
in the future.

Item 6.  Exhibits and Reports on Form 8-K

         (a)   Exhibits.

                  None.

         (b)   Reports on Form 8-K.

               On April 12, 2001, the Company filed a current report on Form 8-K
               under Item 5 ("Other Events") reporting that it had issued a
               press release announcing that it had completed a private
               placement of approximately 1,643,000 shares of its common stock
               to institutional and other accredited investors.

               On April 26, 2001, the Company filed a current report on Form 8-K
               under Item 5 ("Other Events") reporting that it had issued a
               press release announcing financial results for the three months
               ended March 31, 2001.

                                       13

<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                                  CONCEPTUS, INC.


                                  By: /s/ GLEN K. FURUTA
                                      ------------------------------------
                                          Glen K. Furuta
                                          Vice President, Finance and
                                          Administration and Chief Financial
                                          Officer


Date: August 13, 2001

                                       14