I took my birth control pill on Friday at 7:30 PM and threw up around 9-9:30 PM. On Wednesday I had withdrawal bleeding because it was brown and not heavy. On Thursday I experienced actual red color blood but I still think its withdrawal bleeding because I still have 3 more active pills to take before the placebo sugar pills. I didn't take another pill when I threw up because I wasn't sure if the pill dissolved or not. I have been taking the rest of my pills on take for these past 7 days. Am I on my period now (with 3 active pills still) or is it withdrawal bleeding? Is this normal? I haven't had sex since I threw up 7 days ago.