I have been on the pill for over a year. About 6 months ago, the doctor lowered my dosage. I am not sexually active, per say; my boyfriend and I do get close and his sperm is near my vagina but I am always steadfast in bathing right afterwards and wiping it off, and I am on the pill so everyone I ask says I have nothing to worry about. I just recently (about 5 days ago) began bleeding brown/red. It is only coming from one side, though; when I wipe, it only comes from one side. It's heavier than how everyone describes implantation bleeding. I am supposed to start my period on Tuesday. I don't believe this to be implantation bleeding; and I feel 100% fine other than this. Also, about a week ago, my boyfriend was fingering me and was pretty rough. I was thinking maybe he had cut something and it is recovering, but I don't know. I have also been increasing my exercise heavily recently and I have been extremely stressed. I just recovered from having mononucleosis, however, I don't think this would affect anything. Does anyone know what could cause this bleeding? I completely ruled out pregnancy because I have no symptoms whatsoever, and this doesn't seem like implantation bleeding at all. Please help!