DD is now 9 months and shows no signs of wanting to sit. When I put her in the sitting position she is able to stay upright for a few senconds and then loses her balance bending over for a toy or throwing herself backwards and then turning onto her stomach. She loves loves being on her tummy & is desperate to crawl but has not yet figured out how to propel her body. Arms and legs are constantly moving though.
A friend saud her DS was sitting at 7 mo and that that is now the norm.
Should I be concerned?