!!!!! Sex

Me and my boyfriend have sex about everyday... we didn't have sex for like 3 days during my fertile window, but we have unprotected sex but when he cums, he pulls out and cums like 3 seconds later. So he never does inside it of me. I'm supposed to get my period within the next week and a half and I'm starting to get little cramps every now and then. Do you guys think I should be getting my period then? Lol just a little scared because this is the most often we've ever had sex. I also usually get cramps a week before my period