Possibly pregnant? who knows?

Me and my fiance had unprotected sex a few days before I was expecting my period. I think some semen may have gotten into me. I got my period on time,but it isn't as heavy, and the cramps aren't as bad as they usually are. Anyways we had sex on the 2nd day of my period, which always only lasts for 5 days. and he ejaculated inside of me. I got my period on the 3rd of september and october. But in august I got it on the 17th..or something like that. Some help would be nice. Don't need any lectures though.

It would be very rare for you to ovulate a few days before your period or anywhere near it, so chances are, you aren't pregnant.