Hello doctor .. my baby son is 2 year old and his weight is 9.2 kg ... is it ok ? And he did not speak so much , full sentence not speak , what I should do

A. The Weight is less it should be somewhere age of two years which is definitely quite less and comes to talking for a child age of 2 to 3 years also if you want you can wait for some more time otherwise I’m just going to advise you to get a check with a speech therapist wants to have better clarity on it