Standard Days Method® (SDM) is a simple fertility awareness-based method of family planning based on a woman's menstrual cycle. Appropriate for women who usually have menstrual cycles between 26 and 32 days long, the method identifies days 8 though 19 as the fertile days. To prevent pregnancy, the couple avoids unprotected sex on the fertile days. SDM has a 95% efficacy rate when used correctly. A woman can use CycleBeads®, a color-coded string of beads, to help track the days of her menstrual cycle and see which days she is most likely to get pregnant.
Quick Facts about SDM
- 95% effective in preventing pregnancy with correct use, 88% with typical use.
- Natural and has no side effects.
- Easy to teach, use and learn.
- Teaches women about their fertility.
- Can enhance male involvement and couple communication.
- Requires a one-time, low cost purchase for CycleBeads users.
- Developed in 2001 and introduced in over 30 countries worldwide.
- Considered a modern method of family planning by international organizations and ministries of health worldwide.
SDM is a Modern Method of Family Planning
In addition to providing significant protection from unintended pregnancies, modern methods of family planning share certain characteristics, including that they:
- are based on a sound understanding of reproductive biology,
- follow a precise protocol for correct use, and
- have been tested in an appropriately designed study to assess efficacy under various conditions.
SDM meets these criteria and as such, is regarded as a modern method by international organizations and ministries of health around the world. Read the technical brief, which details further justification, here.
Please visit the Advocacy tab for a complete list of peer-reviewed journal articles and other publications about the SDM.