I've been having diarreah and stomach cramps a week after taking Plan B one step. Is the diarreah due to the extra hormone levels in me or is it early pregnancy symptoms? It's been a month since my last period but I've heard that Plan B can affect your cycle by making it a week late. Also, is it safe to take imodium?
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replied August 3rd, 2013
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It can be, but it can also just be a stomach bug or food causing it. It is safe to take ammonium.

Plan B will likely mess with your cycle. There is no fixed period like a week. Sometimes you can totally skip a period or two.

Take a pregnancy test 21 days after the sex, and another 7 days later to confirm that you are not pregnant.

Best of luck!
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