my baby is 3months nd 8days old she is breastfeeded nd she always makes sounds like aaaaaaaannn why ?

A. Cooing sounds typically start off as a series of “oohs” and “aahs.” Your baby may also make gurgling sounds and start to experiment with making sounds with her lips. These fun little noises play an important role: Cooing helps babies develop the muscles they'll use later on when they learn to talk.