What is the difference between Braxton hicks and real contractions?l

Kathleen

What do each feel like?? I'm 40+2 weeks and I'm dying for my contractions to be real. So far I've had two experiences with them I think. One is where my whole belly just gets hard. This happens often. For like a few weeks now. I didn't even know these were considered contractions. And then I've had like cramping pains about a week ago that came and went. Are they both contractions?