Pain in vagina/butt

So I’m 34 weeks, measuring 41w because of excess fluid so my stomach is HUGE.

Dr. Said it could cause me to go early because of pressure or it could not. After I eat I notice there’s so much pressure on my pelvis I can barely walk.

Last night and this morning I’ve noticed pain in my vagina and butthole (tmi sorry lol). It’s not like a cramp it’s pretty constant.

What could this mean? Is this an early sign of labor?