The Natural Cycles app aims to prevent pregnancy by evaluating a woman’s daily temperature and menstruation data. The app — which uses this information to calculate which days a woman is at a high or ...

The report may help explain why the teen pregnancy rate is no longer dropping like it was. Overall, teenage use of birth control and teen attitudes toward pregnancy have remained about the same since ...

Perhaps you’re old enough to remember the “calendar rhythm method" of birth control. Before the Pill became available in the late 1960s, the “rhythm method” was quite popular, especially among those ...