Medical Questions > Womens Health > Birth Control Forum

Am I pregnant or is it my birth control

I am seventeen and three weeks ago I was put on a 10 day antibiotic for a kidney infection. During this time I forgot that my birth control was not affective and had unprotected sex two times but he pulled out. 9 days after that I started spotting brown. It's a little more than spotting but way less than a period. That has continued on for 5 days now. I also have been so tired and weak I have only got out of bed a few hours a day ( its summer vacation from school) and I feel like a complete zombie who is going to throw up (this has been happening for three days). I do not have a fever and all this has continued too long to be the flu so way could be going on?! I took a hpt this morning and it was negative (14 days since unprotected sex) so I feel like I can't be pregnant. I just started seasonique 2 months ago so maybe it just does not work for me? It would not be because you only have a period every three months on the pill because my previous birth control was the same and I never had breakthrough bleeding or any of this. Could the antibiotics have messed up my cycle? What the heck is going on?!
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replied May 20th, 2012
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Yes, antibiotics can mess with your cycle. Only certain antibiotics affect the pill.

Take another pregnancy test in 7 days time (21 days after the sex), then take a test to confirm the results 7 days later.

Best of luck!
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