As far as I understand it's the baby putting pressure on the amniotic sac that eventually ruptures it and breaks the membrane?
For several weeks now (I'm 40+5) I have felt my baby bearing down into my pelvis strongly. I can't help thinking that eventually this will make my waters break!
Or is this just wishful thinking?!
If his is the case, is there anything I can do to help encourage it? Any positions that might help the baby burrow down?