The rhythm or calendar method is a natural approach to birth control. It requires a person to monitor their menstrual cycle and signals from the body to estimate when sex is least likely to result in ...

What is the rhythm method? The rhythm method, also called the calendar method or the calendar rhythm method, is a form of natural family planning. To use the rhythm method, women track their menstrual ...

An app that reportedly uses body temperature and menstrual cycle information to help women who use the rhythm method of birth control avoid pregnancy is facing a complaint after 37 women have blamed ...

The fertility awareness method (FAM) tracks your natural cycles of fertility to help prevent pregnancy. The rhythm method, which estimates the time of ovulation, is one part of FAM. The fertility ...