Eyyy, pelvic pain during pregnancy is totally real and super common, lalo na kung mayroon kang previous CS! Mine was terrible rin sa second pregnancy, parang ang heavy ng belly ko pati sa pelvis ko, di na talaga ako makatulog ng maayos haha. Definitely check with your OB though kasi depende sa cause, sometimes it's just ligament stretching, pero mas safe na marinig mo directly from doctor mo kung okay lang talaga or kailangan ng adjustments sa activity mo. Hugs, momsh, this part of pregnancy is seriously underrated na challenging!