Couple to Couple League

Teaching Method:The Sympto-Thermal Method (STM)

The Sympto-Thermal Method (STM) taught by CCL is based on three key signs of fertility: cervical mucus, basal body temperature and changes in the cervix. By observing and recording these signs you and your spouse will be able to identify Phase I, II and III and therefore know if you’re in a time of fertility or infertility.

These signs are easily noticed by any woman who has learned to watch for them. It takes only a minute or two each day to record them in CCL’s mobile app, CycleProGo, or on a paper chart. The chart provides a daily record that can be used to identify the days of fertility and infertility. Once the fertile and infertile days have been identified, couples apply “rules” that they learn in class (and that are explained in CCL’s Student Guide) to frame the boundaries between the phases of the cycle.


About CCL

The Couple to Couple League (CCL) is an international, Catholic, non-profit organization dedicated to promoting and teaching fertility awareness (natural family planning) to married and engaged couples. Essentially, we are a volunteer organization because services are provided by professionally trained volunteers who are supported by a small staff at the international headquarters in Cincinnati, Ohio. Local chapters of the organization consist of certified teaching couples and promoters, along with other supportive members.


Live Onsite Class

The Live Onsite class meets three times in a traditional classroom setting, usually at a church, school or hospital. Classes last approximately 2 hours each and are spaced one month apart to give you and your fiancé or spouse a chance to practice what you learn. That way you can come back to class with any questions or easily receive any extra help you may need.

CCL has certified teaching couples across the country; use our Register page to search for classes near you. 

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