5. It is effective – 98% to avoid and achieve pregnancy when used properly.

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5. It is effective – 98% to avoid and achieve pregnancy when used properly.

 

Modern methods of NFP are rooted in a solid scientific understanding of the variations in fertility throughout a woman’s menstrual cycle.  These methods have been shown to be highly effective for avoiding pregnancy with method effectiveness ranging from 96-99%* when taught by a qualified instructor and used according to the instructions of the method. By identifying days of fertility, the knowledge provided by NFP aids couples who wish to conceive.  At the same time methods of NFP are very effective for those who are motivated to avoid pregnancy and consistently follow the method-defined instructions.

Manhart, M., and Duane, M., et al. “Fertility awareness-based methods of family planning: A review of effectiveness for avoiding pregnancy using SORT.” Osteopathic Family Physician 5,1 (2013): 2-8.

Pallone, S, Bergus, G. (2009). Fertility awareness-based methods: another option for family planning.

The Journal of the American Board of Family Medicine, 22(2). Retrieved from http://www.jabfm.org/cgi/content/full/22/2/147

Scarpa, B., Dunson, D., & Colombo, B. (2006). Cervical mucus secretions on the day on intercourse: an accurate marker of highly fertile days. Obstetrics & Gynecology and Reproductive Biology, 125. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/16154254

Stanford, J, Lemaire, J, & Thurman, P. (1998). Women’s interest in Natural Family Planning. The Journal of Family Practice, 46(1). Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/9451372

Frank-Hermann, P., Heil, J., Gnoth, C., Toldeo, E., Pyper, C., Jenetzky, E., Strowitzki, T.,  Baur, S. (2007). The Effectiveness of a fertility awareness-based method to avoid pregnancy in relation to a couple’s sexual behavior during the fertile time: a prospective longitudinal study. Human Reproduction, 22(5). Retrieved from http://humrep.oxfordjournals.org/cgi/content/full/22/5/1310