All over stomach discomfort at 30 weeks

This is the 3rd time I’m after getting this stomach discomfort, I wouldn’t even quite call it discomfort but it’s painful and I find it get’s worse if I move a certain way and it’s almost like I have to lean back a certain way because if not I feel it more and I wait till it goes away. It’s not Braxton Hicks, it’s almost this crampy feeling all over my stomach area and I don’t know if it’s stretching or what it is but I can’t lay down like it, putting any kind of strain on my stomach like from sitting up makes it feel worse