My period often so when me and a guy had unprotected sex he came in me three times and a week after i was around abunch of girls that had there periods and I usually get mine but I didn't it was very slight could barely see earlier then I just bled a little after sex and used a tampon the next day not much blood and it stopped i took two tests around 1week6 daysit's been a month now and I have been eating lots my appetite is back and I cramp like I'm on my period but no blood for two days..