Hi Cathe! First congratulations to you and Jon on your new baby boy! He is so beautiful. I know how wonderful being a new mother is and how much you'll cherish ever moment with your new bundle of joy. I am five months pregnant with my second son and have continued stepping, weight lifting and walking. My fifth month of pregnancy I began experiencing Braxton Hicks while stepping, walking and even at rest. Should I be concerned when these occur while exercising or are they normal for pregnant women who exercise?