So about 2 weeks ago I had sex with my SO for about an hour and a half and my period is three days late!! Honestly, I'm scared. There isn't a reason to though, everytime we've had a sexual encounter we've always used protection and he has never ejaculated in me, we've never done it without any protection of any kind and not once has a condom broke.

It's kind of weird that I still haven't gotten my period I'm trying to be as calm as possible so me stress doesn't alter my cycle but I don't know what to dooo!! Help!