2nd baby

A couple questions...if you didn't go naturally into labor w/ your first baby after 40w...did anyone go into labor naturally on their own and before 40w?? Also anyone have a failed induction/emergency c section with 1st and successful induction with the 2nd? I cannot go over 40w for medical reasons so baby is either gonna come early on her own, or induction on due date, or scheduled c section at 40+1 (well 1 day over)...also that's my bday so do i keep that or see if it's safe to do the day after...would you care??? Haha thanks for any input or advise!!