Should he still pull out?

Jory
I've been taking Tri Nessa Lo for about two months. My boyfriend has recently had an interest in having sex without a condom and finishing inside me. While I'm completely fine with having sex without a condom, I always have to push him away right as he's reaching a climax. I get scared that me being on a lower dose of birth control could possibly get me pregnant. I take the birth control correctly the same time everyday. So am I just being paranoid over nothing?