my baby is 9 month old..she tries hard to crawl on knees but is not successful..she is one month premature. once on tummy she stands on knees and hand but she is not able to move..suddenly she goes to push up pose and then she gets tired..she has beem trying to crawl for a long time now..I keep her on floor most of the time..dhe sits without suppot noe..that too If I; made her to sit..she has not done it on her own..I feel guilty..did I do anything wrong ..I didnt look after her correctly? is it too late? I feel sad..all relatives are asking is there any problem with her..she is 7.5kg..