What are the "laws" of induction when it comes to previously having a c/s? ill be 40wks +3 when i go in on monday. do i have any chance of going into natural labour before hand?

should i have any worries or concerns? What are my chances of another c/s? how long will they leave it before deciding that? Bubbs is head down i was 2 cm last week and the membrane was wobbling and they couldnt feel my cervix unless they reached under his head.