They can treat dysmenorrhea (painful periods), dysfunctional uterine bleeding, and endometriosis.
In cases of sexual assault, specific regimens (like the Yuzpe regimen) use anovulants to prevent pregnancy by inhibiting ovulation before it occurs. Moral and Ethical Perspectives
Some theologians argue that victims of sexual assault may licitly use anovulants as a form of self-defense to prevent fertilization, provided there is no evidence that conception has already occurred.