#Pediatrics My 8 month old daughter started making aa sound around 6.5 month old. Later we could hear aa boo, ooo and some other random sounds. she then fell ill and was hospitalized for sepsis at 7 months. she has recovered now. but observed that she is now only making aa sound. not trying for consonants. she is 8 month old and back to just aa sound. worried . when will babbling start.