Pain in certain sex positions :(

Okay HELP!! Basically whenever I go into certain sex positions e.g the reverse cowgirl, legs over his shoulders or even doggy style I get this weird pain when he hits that specific spot and it feels like I’m bursting for the toilet or something in that moment (you know when u hold it in for waaay too long kinda feel).

It’s not like he has a 9inch penis so he can’t be hitting against my badder or something right, or does it hurt when you go deeper?

Is it normal for some positions to hurt? Bc the Reverse Cowgirl is a position that’s waiting for me fr 😂🥺🥺