I stopped birth control over a month ago, had sex one time around the time of ovulation but no don't know if I would actually be ovulating because I don't keep track of it that well. It's been almost two weeks after that time when I had sex, my period is not due for another week, and yet during sex this morning I started bleeding. It wasn't just spotting, it was an okay amount of blood (sorry if that's graphic). I'm just wondering what might be the causes for this? Thanks!