Does not stand
My son is almost 10 months old (he was born 3 weeks premature) and does not stand on his own or with support. Every time his feet touch the ground he bounces! He has been doing this since he was about 5 months old. We bought him a stationary activity center (its a big car with a seat he puts his legs through and his feet touch the ground easily) to try and encourage him to stand, but he still keeps bouncing.
Is this normal? Is there anything I can do to help him support his own weight and not bounce as soon as his feet touch the floor? Any help or advice will be greatly appreciated.