Birth control

I've been on birth control for a month and two weeks and me and my boyfriend had sex with out a condom and he cummed inside me because it was the first time we ever had unprotected sex and since i am on the pill he wanted to inside me is there any way I can get pregnant?? Oh also I have never missed a pill since I've been on it but some days I'm always 20-30 minutes late taking it can that have a affect on the outcome?