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Took Plan B, Got Period, Next Period is Late

By Anonymous June 25, 2010 - 4:34am
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I took Plan B on May 4th, got my period on May 20th just as I normally would have, but now my period this month is a week late. We did have unprotected sex numerous times since taking plan B. Should I take a pregnancy test?

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EmpowHER Guest

I took plan b Sept 26th, got my period when i should have on Oct 6th...it was a normal period. My husband and I had unprotected sex a couple times since my last period and i just tested positive for pregnancy. Is there any way i am pregnant from the unprotected sex i had before i took plan b or is it from the most recent unprotected sex?

November 4, 2011 - 10:26am

Hi Anon-

We have had other people ask this question here as well. From the Plan B FAQ:
"Will I experience any side effects from Plan B® One-Step?

When used as directed, Plan B® One-Step is safe and effective. Side effects may include changes in your period, nausea, lower abdominal pain, fatigue, headache, dizziness and breast tenderness. Some women may have changes in their period, a heavier or lighter next period, or a period that is early or late. If your period is more than a week late, you may be pregnant. If you have severe abdominal pain, you may have an ectopic pregnancy, and should get immediate medical attention."

The dose of hormones in emergency contraception can change your cycle for a couple of months. But following it with more unprotected sex means you could be pregnant. If I read you right, you used emergency contraception but then had more unprotected sex? So your late period could be pregnancy or from the Plan B.

I hope this answered your question.

June 25, 2010 - 7:03am
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