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 ...

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 ...