Does the Plan B pill mess up your period?

Taking an emergency contraceptive, like Plan B, can change your regular bleeding pattern. The Plan B pill is a dose of progesterone, a natural hormone that builds up the lining of the uterus. The medication is actually tricking your body into thinking it should have a period. You should have some sort of bleeding within three weeks of taking the Plan B pill. If you do not have any bleeding or spotting (minimal bleeding) within three weeks visit Teen Clinic for a free or low-cost pregnancy test. You can find more information about Plan B and other birth control methods on our website, or make an appointment at Teen Clinic for a personalized consult.

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