Orgasm or peeing😬?

Whenever I have sex and it’s good sex I start to feel like I’m gonna explode w pee, even if I pee before sex. I usually have to stop it because I’m worried that’s gonna happen. I’ve masturbated and experienced an orgasm but I’ve never had one when hooking up with someone, so I was just wondering if that’s what a penetration orgasm is supposed to feel like or if I’m actually gonna wet the bed.