#Baby's growth & development
Your baby at three months
Updated on March 22, 2023
Created on July 24, 2019
Your pregnancy began exactly one year ago... Three months marks an important transition point for your little one: he is no longer a new-born infant but a baby who is beginning to open up to the world around him.
Size and weight Your baby is growing fast: on average at three months, little boys weigh 5.8kg, their average length being 60cm length; and little girls, 5.3 kg and 59cm, respectively.
Gross motor skill Your baby can now hold his head up when you pick him up, though it will still tend to fall backwards after a few moments.
If you lay him on his tummy, he will lift his head and support himself on his forearms for a short time. When lying on his back, he will stretch and bends his legs one by one and love to kick them in the air!
Fine motor skill Your baby’s movements and gestures, which are involuntary at birth, become more precise and controlled.
When resting, his hands are no longer closed but almost open; he will be fascinated by their movements and will spend a lot of time looking at them. If you offer him a toy, he will be able to take hold of it then then will let it go after a few moments.
He will begin to try to take hold of the counting frame or small toys hanging from his pram or buggy.
Early learning Your baby will be very sociable, smile at everyone and will be happy to be carried even by people he does not know, although, clearly, he will prefer to be with people he sees every day such as his mum and mum, and brothers and sisters or his nanny.
His delight will be evident when he sees you coming and his eyes will follow you as you move around him.
He will be beginning to take an interest in the world around him and will love going for walks in the baby carrier or push-chair.
Your baby will also become increasingly communicative and begin to babble from two months onwards.
Chuckling, cooing, throaty noises, vocalization and little cries of delight... He will be playing with the capacity of his larynx and this adorable babbling is simply irresistible! Sleep During the day, your baby is now awake for long periods of time and his naps will begin to be more regular.
At night, his sleeping patterns will also be beginning to stabilize too: at three months, many babies sleep from six to eight hours consecutively and can therefore be considered to sleep all night, even though this may seem short to you!
However, if your baby is still waking once or more often during the night, this is completely normal and nothing to worry about.
You can continue with night feeds as this will reassure him and will not delay the arrival of long nights of uninterrupted sleep.
