Me and my boyfriend had sex after my period and it was unprotected but it was only for like a minute max and he didn't even ejaculate. Now my period is late But my period is irregular a lot but lately it's been on track. I'm getting cramps, I'm eating a lot more, I either get really hot or really cold and the other day we had sex with a condom and there was a little bit of blood. I'm only 17 and I'm really scared.