I think that’s Braxton hicks, im having lot of them like that lately, feel like tightening or like a knot in certain places in my belly
I’d say braxton hicks but if they become more frequent and intense then could be the start of contractions 🫶🏻
Apparently braxton hicks don’t hurt it’s mainly tightening of the tummy
Deep on and off period cramp pains could be signs of early labour or also can be a sign that baby is just pressing on a nerve or is really low and just causing some pressure
Try and keep an eye to see if a pattern appears but if they’re more frequent it could be something. You could always get checked just to put your mind at ease even if it’s nothing