SOS need advice!

So me and my boyfriend have sex a lot, I'm only 15 haha. But he's so scared I'm pregnant as we had unprotected sex on Sunday and my period is Friday but I was ovulating on Sunday afternoon with discharge, but now I don't have any discharge. Does that mean I'm pregnant? I'm getting plan b as I'm am worried, but should I be? he did not cum inside of me, he came like 5-10 minutes after we had sex and then I blew him, but he had came before we had sex about an hour.