Baby Development at 3 Months

Crying often starts to ease around this age, but unsettled days can still happen. Many families notice longer calm stretches after the 6 to 8 week peak, especially when feeding, sleep, wind, overstimulation, or growth spurts are handled early. If crying feels unsafe or relentless, put your baby down somewhere safe, step away briefly, and call support. Never shake a baby.

Smiles and early conversations are big 3-month milestones. Your baby may smile when you smile, move their arms or legs when excited, and make cooing, gurgling, or vowel-like sounds. Pause after you talk so your baby has time to answer, even if the answer is a wriggle, blink, or small sound.

Seeing and tracking keep improving. A 3-month-old may follow your face across a room, watch a slow toy, or stare at contrasting shapes and picture books. Keep play simple: one face, one book, one rattle, or one soft toy is enough when your baby is learning to focus.

Hearing and language grow through repetition. Talk during feeds, sing the same bath song, read a short board book, copy your baby's sounds, and name everyday actions. You do not need a teaching program; responsive back-and-forth attention is the useful part.

Head and neck control are usually stronger by 3 months. During awake, supervised tummy time, your baby may lift their head and chest, lean on their forearms, turn toward sounds, or push through their arms for a moment. Short, frequent sessions are easier than one long session, and tummy time can also happen on your chest or across your lap.

Feeding is still breastmilk, formula, expressed milk, or a combination unless your health professional gives specific advice. Many 3-month-olds are not ready for solids, and signs such as watching food or chewing hands are not enough on their own. Ask your GP or child health nurse before changing feeds, especially if weight, nappies, reflux, allergy symptoms, or unsettled feeding worries you.

Sleep may become a little more predictable, but it is still normal for babies to wake overnight. A simple rhythm can help: feed, nappy, short play, wind-down, and safe sleep. Keep every sleep on the back, with head and face uncovered, in a safe sleep space that follows local guidance.

Swaddling needs review now. Pregnancy Birth and Baby says the startle reflex often eases around 3 months, and safe wrapping guidance recommends leaving arms free around this stage and stopping swaddling as soon as a baby shows signs of rolling. A correctly sized infant sleeping bag may suit some families better once rolling begins.

Outings can become more rewarding. Your baby may enjoy faces at a mothers' group, light through trees, a pram walk, or a short visit with relatives, but they can still tire quickly. Pack nappies, wipes, spare clothes, feeding supplies, a burp cloth, and a familiar wrap or sleep bag that suits safe-sleep advice.

Appointments can be quieter between the 6 to 8 week check and the next routine vaccine visit, so write questions down as they come up. The Australian National Immunisation Program includes another infant vaccine round at 4 months, so plan the booking before the calendar gets crowded and ask your nurse or GP about catch-up timing if earlier doses were delayed.