i moved out of my parents house when i was 16 (2 years before dd was born) as my mum and I just didn't get along. apart from about 10 months when i was living with my dad for a bit before DD was born i've lived on my own since.
OH lives with his parents at the moment, but depending on jobs etc he's either going to move in with me after LO is born (not sure when though) or i move closer to where he is and we get a place together. the problem with OH moving in with us just now is that he has an hour's commute to work from mine, and he starts at about 6am which i can promise would have everyone up at 4am when he has to get up ... not happening!