How does the contraception calendar work?

The contraception calendar, often referred to as the fertility awareness method, helps individuals track their menstrual cycle to determine fertile and non-fertile days. By recording the start and end dates of menstrual periods over several cycles, users can predict ovulation and identify days to avoid unprotected intercourse if they wish to prevent pregnancy. Typically, the fertile window is calculated as a few days before and after ovulation. It’s important to combine this method with other forms of contraception for higher effectiveness, as it requires careful tracking and consistency.