About 35 weeks pregnant, pelvic area feels sore

Every time I walk or bend, honestly anything I do, my pelvic area feels sore, almost like it's bruised. Legit feels like someone kneed me in the crotch or something

This is my 2nd pregnancy, and first time I'm experiencing this

Baby feels low too

I'm scheduled for a c section on Sept 22nd

Anyone ever deal with this? What is it and why is it happening?