Is it early labor?

FTM 37+5 and just in past few hours having some significant hip pain like really stiff getting up and down from chair. Lower abdominal cramping. Tailbone feels like I fell on it. Pelvic floor is tender like I rode a bike all day. Now it's more lower back pain but like a throbbing. Kind of reminds me of flu body aches or COVID body aches but have zero signs of illness. No belly tightening just more cramping/pressure down low. No bleeding. Baby has had okayish activity today. Yesterday he was active more than usual. Today I would say slightly less but not absent.