Through personall experiance i know all too well that not all children develop at the same rate, So im not sure if im worrying about nothing, but here goes, Ds is a year old in a few weeks time , he was born at 29 wks gestation therfore really he should only be just past 9 months old, he has had no real problems because of his prematurity, but i do feel his development is quite delayed, he is unable to sit unaided , he cannot take a great deal of weight on his legs, he has just mastered rolling over and back, he does babble "baba" and "mum".He just looks so much younger than he actually is, i know he wont be as developed as a 12 month old baby, and we need to class him as a 9 month old baby, but surely he should be doing more.