Family Planning Plus

Anytime you have unprotected sex, there is the risk of pregnancy.

Emergency contraceptive pills (ECPs)  help prevent pregnancy by delaying ovulation. They do this by delivering a dose of progesterone into your system. (Progesterone is one of the hormones that regulates your cycles; it is also one of the hormones in regular birth control pills.) You should have a period within 1 to 3 weeks after taking the ECP.

Your next period may be a little earlier or later than usual. It may be lighter, heavier or spottier than usual. If your next period is more than 1 week late, do a pregnancy test.