Do you think I could still get pregnant?

so uh. my bf and i are sexually active, but this time i'm afraid to do it because it's like the the 20th day of mentrual cycle which is about 4 or 5 days away from my period. I'm on the pill, and he's gonna use double condom and will withdraw before he actually ejaculates. So i'm wondering. do u think i'm gonna get pregnant even with the pill and the extra stuff he's doing? I know that abstinence is key, but well u know how it is...