Leg/muscle pain

So im 33 weeks rn but ive felt this pain/cramp b4, but now im feeling it way more often, while im doing housework or simpling getting up sometimes, i feel this cramp like pain in the back side of my left leg going all the way up to by butt, n its really painful like i cant put my leg down until it goes away, it doesn’t nessissarily “last” but its just like cramping pain, anyone else felt something like this b4?