Please select the eligibility criteria that correspond to the clinical trial below.
Title: Randomized Comparison of Two Internet Supported Natural Family Planning Methods
Brief Summary: The purpose of this research study is to compare the effectiveness of two natural family planning (NFP) methods that are provided over the internet by the Marquette University Institute for Natural Family Planning. One of the NFP methods is the use of a hand held electronic hormonal fertility monitor. The other method involves the self-observation of cervical mucus to track fertility. Both of the methods will involve placing information about fertility into an online charting system that automatically displays the days of fertility and infertility. The investigators are also interested in the influence of mutual motivation by the woman and her partner in using these methods to avoid pregnancy. The investigators hypothesize that there will be lower unintended pregnancy rates among those couples who use the electronic hormonal fertility monitor and among those couples who have a strong motivation to avoid pregnancy.


Options:
A: Inclusion Criteria:

* Provide written informed consent to participate in the study and agree to comply with study procedures.
* Has menstrual bleeds.
* Seeking to become pregnant.
* Living in UK

Exclusion Criteria:

* Used hormonal contraception within the last 3 months.
* Currently undergoing fertility treatment or investigation.
* Diagnosed as infertile following investigations.
* Drug or alcohol dependency.
* history of depression, anxiety or panic attacks
B: Inclusion Criteria:

* Female, age 18-45
* Have menstrual bleeds
* Seeking to become pregnant
* Willing to provide written, informed consent

Exclusion Criteria:

* Known condition to contra-indicate pregnancy
* Having treatment for infertility.
C: For Female participants

Inclusion Criteria:

* be between the age of 18 and 42
* be in a sexually active committed relationship with a man
* have a menstrual cycle range of 21-42 days

Exclusion Criteria:

* have not used Depo (injectable) contraception for the past 6 months
* have not used oral or patch hormonal contraception for the past 3 months
* have not breast-fed baby for at least three months
* have no known fertility problems
* not be using medications that interfere with fertility
* not smoke cigarettes; and
* not be pregnant.

For Male Participants

Inclusion criteria:

* be between the ages of 18 and 50
* be in a sexually active committed relationship with his lone woman partner.

Exclusion criteria:

* have no known fertility problems
D: Inclusion Criteria:

* Female
* Aged 18 - 40 years
* Menstrual cycle length between 23 and 35 days
* Had two natural cycles prior to study participation
* Using non-hormonal contraception to avoid pregnancy OR abstaining from intercourse for the last three months and the present cycle

N.B: Non hormonal contraception includes barrier methods such as male and female condoms, diaphragms or caps, non-hormonal intra-uterine devices such as coils, male and female sterilisation or natural family planning

Exclusion Criteria:

* Unwilling to provide written informed consent to participate in the study or comply with study procedures
* Pregnant
* Breastfeeding
* Has menopausal symptoms such as night sweats or hot flushes
* Using any hormonal treatments e.g. hormonal contraception, fertility treatments and hormone replacement therapy (except thyroxin)
* Taking antibiotics (based on decision by principle investigator)
* Has a diagnosis of polycystic ovarian syndrome (PCOS)
* Has impaired liver or kidney function
* Intending to use PERSONA as a contraceptive during the study period
* Contraindications to frequent blood sampling e.g. anaemia, hypotonia and blood clotting diseases
* Contraindications to frequent ultrasound examinations e.g. morbid obesity and recent abdominal surgery

Answer: C