Woke up at 4:30 am to a large Braxton hicks contraction and my stomach was a rock. I then started to get very mild lower period like cramps. They stopped. Started back up again around this afternoon. The cramps themselves last a second or two but happen on and off for a period of time. I’m 35 Weeks and 3 days. Thoughts? Should I call my dr? Baby has been incredibly active and getting into a ball-like position.