Good evening, I have 40 contractions, there's none yet today. I had an…

Good evening, I have 40 contractions, there's none yet today. I had an appointment with my doctor, who says my cervix isn't ready yet. Tomorrow I'm going to the hospital, they say they're preparing the cervix, what do they do? They put pills in, probably. Have any of you experienced this and after the procedure when you gave birth?