I am in my 38wks and butt hurts from sitting too long, and constantlY feel weird pressure on my vajayjay

that weird pressure is norm. I'm into my 36th week. and I get shooting pains down my thighs when I walk. my doc said it's the muscles and ligaments stretching. that weird pressure you feel is baby engaging if she's anyway turned head down. so her weight is all "down there"...