i am on birth control and have 11 days left of my active white pills. i had sex with a condom on the last day of my period, and sex with a condom wednesday night. Now, i am bleeding. the bleeding started out brown and now is bright red, like my period. I have no signs or symptoms of pregnancy. What is this breakthrough bleeding!? I also had very bad diarrhea friday which I have heard can make my pill not absorb properly, and do not take my pills at the exact same time each night (normally between 8-9:30 though). I am also just started a new birth control pill and it is my second month on those new pills. what is wrong with me????