Is this weird or gross or anything?

I like to hold in my pee when me and my boyfriend are having sex. It's not even that it feels good or anything I just kinda like that little pain of my bladder being full while he's pounding into me. I always go after and recently it's been harder to come out like I'm pushing way harder and it doesn't tinkle out or anything it just pours vastly. Did I do something too wrong here hahaha? Also am I the only one who does that?