I went into labour 3 days before my scheduled C-Section in my last pregnancy. I progressed really quickly and they ended up performing an emergency C-Section 6 hours after my first contraction - at 4am! I have spoken to my OB about this potentially happening again in this pregnancy and we have worked out a contingency plan (my last experience was a mess - it messed with my head and it messed with my breast-feeding) because I don't want a repeat episode! I would discuss these concerns with your OB earlier rather than later x