I don’t remember loosing it with my first but at 39 weeks I was already 4 centimeters. This pregnancy I guess since I know more I’m waiting for things to happen lol . My water never broke on it’s own either the doctor did it ! I’m 38 weeks now and haven’t got checked yet but have been having frequent Braxton Hicks I’m getting induced at 39 weeks due to gestational diabetes so I want to be dilated somewhat like my last pregnancy, it made the induction so much easier .