Hi...mera baby 9 month ki ho gyi hai....wo abhi tak baithti nhi hain....plz bataye main kya karu?

A. I’m usually it is expected that the child should sleep by itself by the age of 8 to 8 1/2 months and maximum when we pull it should be nine months as of now since nine months I’ve already been completed and your child is not stable then consult the doctor for further assistance please