The rhythm method can be used as a way to promote fertility or as a method of contraception, by helping you gauge the best days to have or avoid unprotected sex. Tracking your menstrual history for either fertility or contraception is inexpensive and doesn't have any side effects. Some women choose to use the rhythm method for religious reasons.
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- Hatcher RA, et al. Contraceptive Technology. 20th ed. New York, N.Y.: Ardent Media; 2011:417.
- Frequently asked questions. Contraception FAQ024. Fertility awareness: Rhythm method, basal body temperature method, and more. American College of Obstetricians and Gynecologists. http://www.acog.org/Patients/FAQs/Fertility-Awareness-Rhythm-Method-Basal-Body-Temperature-Method-and-More. Accessed Sept. 7, 2014.
- Jennings V. Fertility awareness-based methods of pregnancy prevention. http://www.uptodate.com/home. Accessed Aug. 19, 2014.
- Smoley BA, et al. Natural family planning. American Family Physician. 2012;86:924.