Ok so, me & my boyfriend had unprotected sex for like 1 minute, just to see how it feels vs a condom, but he didn't nut inside of me. This was few days ago........ My period was a day late "I think" , because bleeding started to occur today, but not as heavy, and I'm kind of paranoid that it might be implantation bleeding. And also my boobs are sore around the nipple.... I just pray this is because of my cycle and not pregnancy. My back doesn't hurt, no cramps, no frequent urination, no nausea. Could I be pregnant ?