Ill be 36 weeks pregnant on Monday and yesterday at my doctors appoitnment she said that I was about 30% effaced and 1 centimeter dilated ! I want to have an idea of how long I could be 1 centimeter dilated for ? Or is there no really way to tell ? And how long can I be 30% effaced for ? But when I went to the ER a couple weeks ago they said that I was 1/2 centimeter dilated and 40% effaced ! So where should I go about that and what to follow?