The Standard Days Method is a simple fertility awareness-based method of family planning that helps women identify the days each cycle when they are most likely to conceive. Couples who wish to prevent pregnancy avoid unprotected intercourse on these days. The method was introduced in 13 sites in Rwanda, a nation with a high level of unmet need for family planning. This was the first time the method was introduced into regular service delivery, without the rigorous follow-up of a study setting. Users of the Standard Days Method were identified from clinic records and participated in interviews and focus groups. Community workers were also interviewed. Results confirm that the Standard Days Method is easy for providers to teach and for clients to learn and correctly use. The method attracts couples who are new to family planning, and is a valuable addition to the method mix offered in Rwanda.