Do women always deliver on their due date?

No2 start to dilate at 36weeks, hence have a jab incase baby come out earlier. But manage to stay till 38 weeks. On the actual day, if gynae didn't burst the water bag, and didn't speed up the contraction, i think he may still stay inside for another 1 or 2 days perhaps. So it's really depend on ur body. Some people walk so much and still didn't dilate when they are their edd dates. I didn't walk much like no1 , dilate faster perhaps slower(long story) and was ask to walk lesser.