Table 1: fertility awareness methods
FERTILITY AWARENESS METHODS (FAM)	Standard Days Method® (SDM) identifies a fixed fertile window in the menstrual cycle when pregnancy is most likely and is typically used with CycleBeads®, a visual tool that helps women track their cycle to know when they are fertile. Results of an efficacy trial showed SDM to be more than 95% effective with correct use and 88% effective with typical use, for women with cycles lasting between 26-32 days.
	TwoDay Method® relies on cervical secretions as the fertility indicator. Results of the efficacy trial published in 2004 showed it to be 96% effective with correct use and 86% effective with typical use TwoDay Method is appropriate for women whose secretions are healthy and who are able to avoid intercourse on days identified as fertile.
	Lactational Amenorrhea Method (LAM) is based on post-partum infecundity and is highly effective if three specific criteria are met: breastfeeding only, no menses, and the baby is less than six months. LAM is more than 99% effective with correct use and 98% effective with typical use
Sources: Arevalo, Jennings, Sinai 2002; Arevalo, Jennings, Nikula, Sinai 2004; Labbock, et al. 1997