Hello everyone! Girls, I'm about to give birth, I go to the maternity …

Hello everyone! Girls, I'm about to give birth, I go to the maternity hospital every week from 37 weeks, and yesterday they said that if the contractions don't start within this week, then they will call for the delivery on Wednesday. Damn, I'm scared, I would like them to start by themselves, but something doesn't want to come out, it seems the baby is not ready. Who stimulated the contractions? Who called for the contractions? How does it work? Is it painful? What should I do? I guess I'm a bit of a scaredy cat ???