Standard Day Method (SDM): a modern family planning method
Standard Days Method® (SDM) is a highly-effective, inexpensive and modern family planning method that is easy-to-teach and use. It identifies a fixed fertile window in a woman’s menstrual cycle when pregnancy is most likely. CycleBeads®, a visual tool, helps women track their cycles to know when they are fertile. An efficacy trial showed SDM to be more than 95% effective with correct use and 88% effective with typical use.