Month 3

Milestones this month

Month three is a turning point. The so-called fourth trimester — that hazy, overwhelming bridge between womb and world — is officially over. And the baby on the other side of it is noticeably different from the sleepy newborn you brought home.

Head control is dramatically better. During tummy time, your baby can now lift their head to 45 or even 90 degrees and hold it steadily. They may push up on their forearms, mini push-up style, which strengthens the chest and arm muscles needed for rolling later. Some babies start to roll from tummy to back this month (often by accident — the head is heavy and momentum does the rest).

Socially, your baby is coming alive. Cooing is in full swing — long strings of vowel sounds, squeals, and gurgles that sound like the beginning of conversation. They are learning the rhythm of back-and-forth communication, so when they coo, pause and respond. You are teaching them that their voice matters.

And then there is the laugh. Not every baby laughs at 3 months, but many do — and the first real laugh is one of the most purely joyful sounds you will ever hear. It often comes in response to something physical — a funny face, a gentle bounce, a raspberry blown on their belly. Once it starts, you will spend an unreasonable amount of time trying to trigger it again.

Your baby has discovered their hands. They will stare at them, bring them together, and begin reaching for objects with increasing accuracy (though their grasp is still clumsy). They can hold a lightweight rattle briefly if you place it in their hand.

Vision has improved significantly — your baby can now see across a room and tracks moving objects smoothly. They recognize familiar faces and may become visibly excited when they see you or your partner.

Every baby develops at their own pace — these are general guidelines, not deadlines.

Sleep guide

Sleep is starting to consolidate — and this is the first month where many parents begin to feel slightly more human. Your baby may sleep one longer stretch at night, sometimes 5 to 6 hours, before waking to feed. Total sleep is around 14 to 16 hours per day, with daytime naps organizing into a loose pattern of 3 to 4 naps.

The circadian rhythm is establishing itself. Your baby is starting to produce melatonin, the hormone that signals nighttime sleepiness, and their internal clock is beginning to differentiate day from night. Continue reinforcing this: bright and social during the day, dim and boring at night.

This is a good time to start a consistent bedtime routine if you have not already. Keep it simple and repeatable — bath, pajamas, feeding, book or song, lights out. The routine itself matters more than the specific activities. Your baby is learning that a predictable sequence of events leads to sleep, and this association will serve you well for years.

Naps may still be short and unpredictable — 30 to 45 minutes is common at this age. Some babies will take one longer nap and several catnaps. Do not stress about a perfect nap schedule yet. If your baby fights naps, watch for sleepy cues (yawning, eye rubbing, fussiness) and try to put them down before they become overtired.

Safe sleep guidelines remain unchanged: back sleeping, firm surface, empty crib. If your baby has started rolling from tummy to back, continue placing them on their back to sleep — if they roll on their own, you do not need to reposition them, as long as the sleep space is clear.

If you are returning to work this month, the transition can disrupt sleep temporarily. This is normal and will settle. Be patient with yourself and your baby.

Feeding guide

Feeding is likely smoother than it has ever been. Your baby is more efficient — breastfeeding sessions may be shorter (10 to 20 minutes per side), and bottle-fed babies are taking 4 to 6 ounces per feeding, about 5 to 6 times per day. The frantic cluster feeding of the early weeks has usually eased.

If you are breastfeeding and returning to work, you are probably navigating the world of pumping. Practical tips: pump on roughly the same schedule your baby would feed to maintain supply (every 3 to 4 hours), invest in a good hands-free pumping bra, label and date all stored milk, and know that pumped output is not a reliable indicator of your total supply — babies are more efficient than pumps.

If you are formula feeding, your baby's intake has increased. Most 3-month-olds take 24 to 32 ounces per day. You may notice your baby becoming distracted during feedings — looking around the room, pulling off the bottle to investigate a sound. This is normal and a sign of their increasing awareness of the world.

Growth spurts around 3 months can temporarily spike hunger. Your baby may want to eat more frequently for a few days before settling back into their usual pattern.

An important note: despite what well-meaning relatives may suggest, your baby does not need solid food yet. The AAP recommends exclusive breast milk or formula until around 6 months. Rice cereal in a bottle does not help babies sleep longer — this is a persistent myth with no evidence behind it.

Continue watching for adequate intake: 6 or more wet diapers daily, consistent weight gain, and a satisfied baby after feeds. Your pediatrician will track growth curves at the well-child visits.