I've been on Marvelon bith control pill for 6 months now.I was on anti-biotics for a week in the beginning of August.I completely spaced on anti-biotics screwing up birthcontrol and I had unprotected sex.I ended up having brown spotting 9 days before my period which turned into light,brown bleeding.I'm not sapossed to get my period until Tuesaday.

I've had a headache for the the past few days(I hardly ever get a headache and when I do it rarely lasts more than a few hours),my nipples are itchy and I've noticed more blue viens,and I also can't stand eating salsa which I normally love.Also a little over a week ago I had a yeast infection(I haven't had one in years) and I've read that pregnancy can cause that but it could be caused by the anti-biotics (though I've had that anti-biotic before and never got a yeast infection)

I'm planning on testing next week but I just wanted some feedback.

Pardon my ignorance, but with regard to birth control, doesn't it make your body think you're pregnant so you can't get pregnant?

If you got sideways on taking your pills, it shouldn't be any big wonder that your body would be "acting up". You could be pregnant, but my guess is that you probably just freaked out your body by doing something it (your body) doesn't know how to interpret (by missing some pills).

Good luck.