What the others have said is right Sarah - Munchkin may have partially engaged now, but it doesn't necessarily mean he will arrive early. I know a girl in my ante-natal classes had fully engaged and was thinking she would go early, but guess what? She went over and had to be induced!!
I'm pretty sure that Matilda disengaged herself, and yeah, Jacob apparently did that during labour, the cheeky boy! He got up to some mischief in there during labour, when he'd been good during the whole PG - in just the right spot! During labour he turned the wrong way and was posterior and then disengaged....the OB couldn't feel his head at all when he did his last internal examination during labour.....then the emergency caesar was ordered as there was some meconium (although his HR was fine) and my cervix, although having got to 9cm, had started to swell, so there were numerous reasons why Jacob wasn't coming out that way!!!
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