Anytime you have unprotected sex, there is the risk of pregnancy.
Plan B helps prevent pregnancy by delaying ovulation. It is most effective when taken within 24 hours after unprotected sex, but can be effective when taken as long as 120 hours (5 days) after unprotected sex. Because Plan B delays ovulation, it can alter your regular cycle for a month or two. Most people do not have any bleeding within 24 hours. A period should occur within 2-3 weeks (or sooner) after taking Plan B. Plan B may make your period
7. February 2012
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