A fertility-awareness method used by people who abstain from intercourse during a woman’s fertile period. This differs from other forms of fertility awareness where couples use barrier methods of birth control during their fertile period. Uses various means to determine when it is safe to have intercourse with a lower risk of pregnancy, including examining the cervical mucus, a woman’s body temp, and questionable apps that make big claims. When used correctly, can be somewhat effective, but would you trust something like this in a state that wants to put women in jail for having an abortion?