This has happened on 2 seperate occasions. I would've in the middle of having sex and I would just start to bleed. Idk if it's a coincidence but the first time I thought was from popping my cherry after s couple times of sex and lasted an hour or two and the other I thought was my period and lasted s couple days cuz I took extra birth control on accident and then stopped taking them. Right after the second time which I thought was my period I got my period about a week and a half later is that bad??