I don't think I'm fertile

Love
Okay, my boyfriend and I have been together for 5 years now ❤️ and we've always been careful to prevent pregnancy. But for MONTHSSSS we just stopped caring and he rarely pulls out now & surprisingly I'm not pregnant or haven't gotten pregnant. I haven't taken a pregnancy test either & I get my period every month as scheduled. I'm not sure if I'm able to have kids or if he's shooting blanks. Hopefully neither because I'd love for us to have a family in the future. Any thoughts???