Hi miiii .. Makakatulong yung tracker na meron si TAP for the milestones ni baby. Naiintindihan ko ang worry mo miii but, you have to encourage him to speak, talk to him more often, basahan mo ng books & kung may ituturo sya let him say it instead ibigay agad sakanya, No baby talk.
Have him checked by pedia if needed ask for a recommendation letter for Dev.ped.