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Q: 

Does Plan B mess up your cycle? For how long?

By Anonymous December 22, 2016 - 9:33am
 
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In September i had unprotected sex, he didn't ejaculate inside me but i still took the pill. after that i received my period earlier (like a week after taking the pill) and after that my cycle became of around 30 days regarding the last period i had (the one after the pill) i was supposed to have my December period about 6 days ago. i have been involved in sexual acts but no unprotected sex and it wasn't on my fertile window regarding the new cycle. What could be happening, should i take a pregnancy test? is it another health problem?

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Anonymous

I had unprotected sex in June but he didn’t ejaculated in me but I still took plan b then I had my period 4 days later then 2 weeks later I had sex agian and this was June 1st and the condom broke but the next day June 2nd I was bleeding out of nowhere I thought that my period came early but it only lasted for a day then I started to think because it’s an side effect of the pill and I didn’t take another plan b and I was supposed to have my period yesterday but I took a pregnancy test and it’s say negative but I don’t know if this is another side effect of the first pill I took or if I’m pregnant

July 19, 2018 - 2:08pm
Guide

Hello Anonymous,

Welcome to EmpowHER. Thank you for reaching out to our community with your questions about Plan B.

One reported side effect of Plan B is changes in the menstrual cycle. The next monthly period could start earlier or later than expected. Flow might be lighter or heavier than normal. Generally, these changes last for only one menstrual cycle.

However, every woman is different and can respond differently.

The delay in your period for December should not, but may be linked to taking Plan B. Please consider talking with your gynecologist about this. A blood test to check hormone levels may be ordered.

Regards,
Maryann

December 22, 2016 - 9:48am
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