Needing to pee during sex😂

Sometimes when I'm having sex with my boyfriend it's all going good and I'm nearly reaching orgasm and then I suddenly really badly feel like I need to pee!! Like actually feel like I'm gonna piss myself even if I went before we had sex. Someone please say they've experienced this. is it normal? Could I end up accidentally seeing on my boyfriend is the bigger question😂😂😂 help!