Medically reviewed by Renita White, MD You can take Plan B (levonorgestrel), or the "morning-after pill" as often as you need ...

Medically reviewed by Erika Prouty, PharmD There isn't a limit to how many times you can use the emergency contraceptive pill ...

Plan B is more effective the sooner you take it, but it can be taken up to 72 hours after unprotected sex. Plan B does cause side effects like irregular bleeding or delaying your period.

Plan B, also known as the morning-after pill, is a type of emergency contraception. It can help prevent pregnancy if you take it soon after having penis-in-vagina sex without a condom. Plan B isn ...

A check mark. It indicates that the relevant content has been reviewed and verified by an expert Our stories are reviewed by medical professionals to ensure you get the most accurate and useful ...

Taking a morning-after pill during ovulation doesn’t usually harm your body. But you may still become pregnant. That’s because pills like Plan B can delay ovulation to prevent pregnancy.