Your baby's development

There’s never a dull moment with a four-month-old baby as she laughs and giggles at practically everything. Raspberries, funny faces, tickle games and mum and dad generally acting like clowns will have her squealing with laughter. If your baby has reasonable neck and head control and does not slump forward, you can prop her up in a sitting position using cushions for support if she topples to one side. Make sure you are always near by to catch her when she topples over.


Between three and six months your baby may attempt a few cooing noises and can look around and turn when she hears a new sound. She may be able to respond to ‘No’ or changes in the tone of your voice.  If you give her toys that make sounds such as rattles with bells on or soft toys that squeak, she will enjoy listening to the sounds they make. She may be scared if someone has a loud voice that she does not recognise and may even begin to repeat a few sounds. (More of the ahh–bah–boo variety).


At four months old she will be able to track smaller objects and details are becoming more obvious to her. She is starting to understand about depth and height and can recognise patterns and the difference between two pictures. She will love it if you read books to her and point out what the pictures are or the noises the animals make. 

Look at our Skills section for parenting advice and stories.

Read on to week 17.

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