מודעות לפוריות
הערות שוליים

↑  Weschler, Toni (2002). Taking Charge of Your Fertility (Revised ed.). New York: HarperCollins. pp. 52. ISBN 0-06-093764-5.
↑  "Medical Eligibility Criteria for Contraceptive Use:Fertility awareness-based methods". Fourth edition. World Health Organization. 2010. אורכב מ-המקור ב-2012-11-02. נבדק ב-2012-12-11.
↑  O'Reilly, Andrea (6 באפריל 2010). Encyclopedia of Motherhood (באנגלית). SAGE Publications. p. 1056. ISBN 9781452266299. The Roman Catholic church and some Protestant denominations have approved only "natural family planning" methods--including the rhythm method and periodic abstinence. {{cite book}}:  (עזרה)
↑  Green, Joel B. (1 בנובמבר 2011). Dictionary of Scripture and Ethics (באנגלית). Baker Books. p. 303. ISBN 9781441239983. In 1968, Paul VI reiterated the traditional Catholic prohibition against all but "natural family planning" (abstinence during fertile periods), which many Catholics and some Protestants continue to practice. {{cite book}}:  (עזרה)
↑  Saint, Bishop of Hippo Augustine (1887). "Chapter 18.—Of the Symbol of the Breast, and of the Shameful Mysteries of the Manichæans".  In Philip Schaff (ed.). A Select Library of the Nicene and Post-Nicene Fathers of the Christian Church, Volume IV. Grand Rapids, MI: WM. B. Eerdmans Publishing Co.
1 2  Yalom, Marilyn (2001). A History of the Wife (First ed.). New York: HarperCollins. pp. 297–8, 307. ISBN 0-06-019338-7.
↑  "A Brief History of Fertility Charting". FertilityFriend.com. נבדק ב-2006-06-18.
1 2  Singer, Katie (2004). The Garden of Fertility. New York: Avery, a member of Penguin Group (USA). pp. 226–7. ISBN 1-58333-182-4.
1 2 3  Hays, Charlotte. "Solving the Puzzle of Natural Family Planning". Holy Spirit Interactive. אורכב מ-המקור ב-2012-02-26. נבדק ב-2012-02-15.
↑  Moral Questions Affecting Married Life: Addresses given October 29, 1951 to the Italian Catholic Union of midwives and November 26, 1951 to the National Congress of the Family Front and the Association of Large Families, National Catholic Welfare Conference, Washington, DC.
↑  Billings, John (במרץ 2002). "THE QUEST — leading to the discovery of the Billings Ovulation Method". Bulletin of Ovulation Method Research and Reference Centre of Australia. pp. 18–28. אורכב מ-המקור ב-2007-02-19. נבדק ב-2007-03-18. {{cite web}}:  (עזרה)
↑  Singer (2004), p.xxiii
↑  "About us". Fertility Awareness Center. 2006. נבדק ב-2007-03-18.
↑  Weschler (2002)
↑  "Efficacy of a new method of family planning: the Standard Days Method". Contraception. 65 (5): 333–8. 2002. doi:10.1016/S0010-7824(02)00288-3. PMID 12057784.
↑  "Further analysis of the theoretical effectiveness of the TwoDay method of family planning". Contraception. 64 (3): 149–53. 2001. doi:10.1016/S0010-7824(01)00251-7. PMID 11704093.
↑  Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ (באנגלית). pp. l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535.
↑  Jennings, Victoria H.; Haile, Liya T.; Simmons, Rebecca G.; Fultz, Hanley M.; Shattuck, Dominick (2019-01-01). "Estimating six-cycle efficacy of the Dot app for pregnancy prevention". Contraception (באנגלית). pp. 52–55. doi:10.1016/j.contraception.2018.10.002. ISSN 0010-7824. PMID 30316782free{{cite web}}:  תחזוקה - ציטוט: postscript (link)
↑  Health, Center for Devices and Radiological (2019-09-11). "FDA allows marketing of first direct-to-consumer app for contraceptive use to prevent pregnancy". FDA (באנגלית). נבדק ב-2019-10-01.
↑  James B. Brown (2005). "Physiology of Ovulation". Ovarian Activity and Fertility and the Billings Ovulation Method. Ovulation Method Research and Reference Centre of Australia. אורכב מ-המקור ב-2005-12-24.
↑  Kippley (2003), pp.121-134,376-381
↑  Kippley (2003), p.114
↑  Evelyn Billings; Ann Westinore (1998). The Billings Method: Controlling Fertility Without Drugs or Devices. Toronto: Life Cycle Books. p. 47. ISBN 0-919225-17-9.
1 2  Kippley (2003), pp.108-113
↑  Kippley (2003), p.101 sidebar and Weschler (2002), p.125
↑  Kippley (2003), pp.108-109 and Weschler (2002), pp.125-126
↑  Kippley (2003), pp.110-111
↑  Kippley (2003), pp.112-113
↑  http://nfp.marquette.edu/
↑  http://epublications.marquette.edu/cgi/viewcontent.cgi?article=1343&context=nursing_fac
1 2  "How to Observe and Record Your Fertility Signs". Fertility Friend Handbook. Tamtris Web Services. 2004. נבדק ב-2005-06-15.
1 2  Manhart, MD; Daune, M; Lind, A; Sinai, I; Golden-Tevald, J (בינואר–בפברואר 2013). "Fertility awareness-based methods of family planning: A review of effectiveness for avoiding pregnancy using SORT". Osteopathic Family Physician. 5 (1): 2–8. doi:10.1016/j.osfp.2012.09.002. {{cite journal}}:  (עזרה)
1 2 3  "The effectiveness of a fertility awareness based method to avoid pregnancy in relation to a couple's sexual behaviour during the fertile time: a prospective longitudinal study". Hum. Reprod. 22 (5): 1310–9. 2007. doi:10.1093/humrep/dem003. PMID 17314078free{{cite journal}}:  תחזוקה - ציטוט: postscript (link)
↑  James Trussell; Anjana Lalla; Quan Doan; Eileen Reyes; Lionel Pinto; Joseph Gricar (2009). "Cost effectiveness of contraceptives in the United States". Contraception. 79 (1): 5–14. doi:10.1016/j.contraception.2008.08.003. PMC 3638200. PMID 19041435.
↑  "Fertility Awareness Method". Brown University Health Education Website. Brown University. 2012. נבדק ב-2012-12-11.
↑  Hatcher, RA; Trussel J; Stewart F;  et al. (2000). Contraceptive Technology (18th ed.). New York: Ardent Media. ISBN 0-9664902-6-6.
↑  Kippley, John; Sheila Kippley (1996). The Art of Natural Family Planning (4th addition ed.). Cincinnati, OH: The Couple to Couple League. p. 141. ISBN 0-926412-13-2.
↑  "A randomized prospective study of the use-effectiveness of two methods of natural family planning". American Journal of Obstetrics and Gynecology. 141 (4): 368–376. באוקטובר 1981. doi:10.1016/0002-9378(81)90597-4. PMID 7025639. {{cite journal}}:  (עזרה)
↑  "Comparative evaluation of two methods of natural family planning in Colombia". American Journal of Obstetrics and Gynecology. 138 (8): 1142–1147. בדצמבר 1980. doi:10.1016/S0002-9378(16)32781-8. PMID 7446621. {{cite journal}}:  (עזרה)
↑  Marshall J (באוגוסט 1976). "Cervical-mucus and basal body-temperature method of regulating births: field trial". Lancet. 2 (7980): 282–283. doi:10.1016/S0140-6736(76)90732-7. PMID 59854. {{cite journal}}:  (עזרה)
↑  "Effectiveness and acceptability of the sympto-thermal method of natural family planning in Germany". American Journal of Obstetrics and Gynecology. 165 (6 Pt 2): 2052–2054. בדצמבר 1991. doi:10.1016/s0002-9378(11)90580-8. PMID 1755469. {{cite journal}}:  (עזרה)
↑  "Natural family planning with and without barrier method use in the fertile phase: efficacy in relation to sexual behavior: a German prospective long-term study". Advances in Contraception. 13 (2–3): 179–189. ביוני–בספטמבר 1997. doi:10.1023/A:1006551921219. PMID 9288336. {{cite journal}}:  (עזרה)
↑  Ecochard, R.; Pinguet, F.; Ecochard, I.; De Gouvello, R.; Guy, M.; Huy, F. (1998). "Analysis of natural family planning failures. In 7007 cycles of use". Contraception, Fertilité, Sexualité. 26 (4): 291–6. PMID 9622963.
↑  Hilgers, T.W.; Stanford, J.B. (1998). "Creighton Model NaProEducation Technology for avoiding pregnancy. Use effectiveness". Journal of Reproductive Medicine. 43 (6): 495–502. PMID 9653695.
1 2  Howard, M.P.; Stanford, J.B. (1999). "Pregnancy probabilities during use of the Creighton Model Fertility Care System". Archives of Family Medicine. 8 (5): 391–402. doi:10.1001/archfami.8.5.391. PMID 10500511.
↑  James Trussell et al. (2000) "Contraceptive effectiveness rates", Contraceptive Technology — 18th Edition, New York: Ardent Media.
↑  Manders, M; McLindon, L; Schulze, B; Beckmann, MM; Kremer, JA; Farquhar, C (17 במרץ 2015). "Timed intercourse for couples trying to conceive". The Cochrane Database of Systematic Reviews. 3 (3): CD011345. doi:10.1002/14651858.CD011345.pub2. PMID 25775926. {{cite journal}}:  (עזרה)
↑  Ryder R (1993). ""Natural family planning": effective birth control supported by the Catholic Church". BMJ. 307 (6906): 723–6. doi:10.1136/bmj.307.6906.723. PMC 1678728. PMID 8401097.
↑  "Cumulative pregnancy rates in patients with apparently normal fertility and fertility-focused intercourse". J Reprod Med. 37 (10): 864–6. באוקטובר 1992. PMID 1479570. {{cite journal}}:  (עזרה)
↑  "Conception, early pregnancy loss, and time to clinical pregnancy: a population-based prospective study". Fertil Steril. 79 (3): 577–84. 2003. doi:10.1016/S0015-0282(02)04694-0. PMID 12620443.
↑  "How to get pregnant". Mayo Clinic. 2016-11-02. נבדק ב-2018-02-16.
↑  "Fertility problems: assessment and treatment, Clinical guideline [CG156]". National Institute for Health and Care Excellence. נבדק ב-2018-02-16.
↑  Dr. Philip B. Imler & David Wilbanks. "The Essential Guide to Getting Pregnant" (PDF). American Pregnancy Association. אורכב מ-המקור (PDF) ב-2018-06-01. נבדק ב-2018-02-16.
↑  "Infertility fact sheet: What causes infertility in women?". womenshealth.gov. U.S. Department of Health and Human Services, Office on Women's Health. אורכב מ-המקור ב-2012-11-02. נבדק ב-2012-12-11.
↑  Weschler (2002), p. 173.
↑  Weschler (2002), p.316
↑  Weschler (2002), pp.3-4,155-156, insert p.7
הבהרה: המידע בוויקיפדיה נועד להעשרה בלבד ואינו מהווה ייעוץ רפואי.