Since you got your period before you took Plan B, there is no reason to take it. If you had unprotected sex, you may be at risk for STI transmission. You can get free and confidential STI testing at Teen Clinic. During that visit, you can also speak with a health care professional about birth control options that will work well for your body, habits and behaviors. Using hormonal birth control methods and condoms is effective at preventing pregnancy and STI transmission.

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