I have been on birth control since I was 18 ( I'm 24 now) I started my period last Saturday night. My periods usually only last about 4 days. It's now sat night ( one week later) I stopped bleeding last night. Had intercourse this morning and started bleeding again. I stopped for a few hours and now I have started again. Im having very mild cramp like pain but other than that no symptoms... Should I be worried? Oh I'm also still taking my pill every night and haven't missed a day in at least 2 months??