Immersed pressure

Hi mommy, im at 38 weeks today. Last 2 days i started having this bad pelvic pain/cramps more towards my left. Its more to the pelvic bone, hips and my backbone. Everytime I gets up from sitting, shift position of lying down to my left or right it hurts as if my whole pelvic bones is being pulled. Had a hard time walking too. Is this normal? The pain is more severe to my left, ive called up NUH hotline and they said its normal. Anyone experience this before and can share more on what I should do or prepare? #1stimemom #advicepls #firstbaby