Hey mamas, I'm having very mild braxton hicks contractions off on and the last several days. This is my fourth pregnancy, and I noticed with each one they come earlier. Has anyone else had this at 4.5 months before? It feels so weird to have your uterus be so small still but that funny tightening feeling. I find it usually happens when I have to pee really badly and then sit down to go. It's like trying to release my bladder stimulates the tightening.