Braxton hicks or not

Brooke
I have been having contractions the last 2 days. I am 31 weeks 2 days today. They last longer than 30 seconds and are uncomfortable, make breathing a little harder and make me warm.. I have a pretty high pain tolerance. I was cross stitching while I was 9 centimeters dilated with my third. I don't remember having Braxton hicks with any of my other kids if I did it was just the tightening feeling. Of course I called my midwife to ask her; her thoughts but of course they closed early today because it's Friday and a holiday.  Sooo do they sound like Braxton hicks or maybe I should call my midwife anyways to be sure??