I did what Astrid said last time, even through my LMP & early scan date was the 1st of June I went by my older scan date the 5th of June when it came time for induction, so I would have longer. In the end I was induced on the 16th of June and that was after pushing it back 4 days. I would much rather go through a natural start to labour than every have an induction again, thats why I am happy not to have an official EDD yet...