Confused

So this guy I’ve had casual sex with twice now. We start off the first round without condom then he arrives. Usually within a few minutes which is okay cause I know he’s super sensitive and can feel all of me. Well the second round we use a condom and I know it feels different but once he puts that on it’s like he can go forever. My thins is since we’ve already had it unprotected why not just continue. We both are clean and up to date with our statuses soo ?!?!! Idk what to think. Maybe he’s trying not to get me pregnant??? I want to ask him next time to keep it off but I know if he says no it’s going to make it hella awkward 😬

What do I do.