When taken within 24 hours of unprotected sex, Plan B is about 95% effective in reducing the risk of pregnancy. Depending upon where you are in your cycle, Plan B may either prevent or delay ovulation or may interfere with fertilization of an egg.
Plan B can cause your period to start earlier or later than normal for you. If you do not get your period within three weeks, get a pregnancy test to make sure that you are not pregnant.
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Hello AngieC,
When taken within 24 hours of unprotected sex, Plan B is about 95% effective in reducing the risk of pregnancy. Depending upon where you are in your cycle, Plan B may either prevent or delay ovulation or may interfere with fertilization of an egg.
Plan B can cause your period to start earlier or later than normal for you. If you do not get your period within three weeks, get a pregnancy test to make sure that you are not pregnant.
Maryann
September 3, 2012 - 4:30pmThis Comment
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