worried ftm

Hi ladies, I'm a little worried; I've had braxston hicks since I was 19 weeks and I'm now 27 + 4 and I'm having some pain that starts at my hips and goes all way to the base of skull. My tummy area has been hard as a rock for the past two day, I know I don't have to poop because I do that every day won't say how many times. It's just my body getting ready for my little man or could be more?