Cramps?

Katrina

I am 18 1/2 weeks with baby number 4. I am just starting to show a bump and stomach isn't hard. I keep having these weird cramps, they remind me of Braxton Hicks contractions on every way except my belly isn't hard to the touch bit it feels like it should be. Anyone else have this going on? It worries me as I was never had this happen before. Plus it hurts and it's hard to breathe. Happens every day now .