Am I safe?

Me and my boyfriend always use condoms so far none have seemed to break. I always tie it at the eve abs check for leaking but nothing. I also am on the pill and I’m very consistent with it. Sometimes he cums inside with the condom, is it still safe like that? I check after as well for leaks. And if he Cubs and slowly pulls out after a few seconds till I finish as that usually happens after he finishes, is that still safe? How much can he stay inside after ejaculation with still having the condom on?