Need help!

Jess

So my bf and I have been having sex almost everyday he cums in me but usually right after we have sex I use the bathroom to pee. I would assume you’d see cum come out when u pee but I swear to u it’s like for us it just disappears. Idk he’s told me his sister and brother been trying to have a baby for years and couldn’t get pregnant I’m starting to think he has a problem too. What do I do ? I know that’s not normal..