I take birth control regularly, just to make it clear. I had my period and six days later i had sex without a condom. How would I know if my birth control failed? Considering I wouldn't be getting my period for awhile, what signs may come up? I won't be able to tell if i skipped a period because I just had it. And in the even that I do skip one, it will be to late for plan B.

I need help A-S-A-P!