My son is almost 9 months old but still not able to sit without support for long time

A. Mam just give it 15 more days if you do not see your child has learnt to sit independently by the time of 9 1/2 months then in that case you should consult your doctor because then it would genuinely be a delay in the growth of your child and if you want you can consult now also that you can start with necessary supplements if needed