16 weeks, seat belt pressure

Ok I tried to search for something similar but saw nothing. Maybe you ladies are experiencing the same thing? Anyways for the last, hmm maybe month, possibly longer, ( I remember it mostly around week 13 but it could have started beforehand. Just don’t remember now) I’ve had major issues with wearing my seat belt. Or should I say, I’ve had issues when I bend over whilst wearing my seat belt. If I have to pick something off the floor or lean forward in any way, the seat belt pushes into my pelvic area and I get this massive pressure that makes me sit up straight away. Now mind you, I also have this happening when I press in my hands to feel for my uterus so I can only assume it is in fact my uterus that I’m feeling pressure on.