my infant who is going to be age of 13 months soon , is making only gibberish sound. he does not pronounce a single letter clearly. should i wait for more time or see a doctor?

A. Hi good afternoon !! generally babies start talking around 9-11 months but not fluent or clear. Only two letters like dada,dadi,papa,bla bla. No need to worry, yes wait for few months 4-5 months around 15-18 months he can spell clearly. Now observe whether he catching our words, expressions responding to our commands , listening sounds . Daily practice small words with baby and repeat with baby while he try to spell.