Your baby at two months: smiling, feeding and the first vaccines

0-3 months · Development · Reviewed 20 June 2026 · All articles

Eight weeks in and the fog of the newborn period is beginning to lift, just a little. You may have caught a real smile already, noticed your baby tracking your face across the room, or felt a feed that was over in half the time it used to take. Two months is a quiet pivot point: not dramatically different from week four, but clearly not the same newborn either. This guide covers what is happening physically, developmentally, and medically around the two-month mark, and what to expect in the weeks ahead.

Development at a glance

• Typical weight: around 5 to 5.5 kg (11 to 12 lb), though the range is wide
• Typical length: around 57 to 60 cm (22 to 24 in), again with plenty of variation
• Head control: steadier, with brief push-ups on forearms during tummy time
• Vision: tracks objects across the midline, recognises familiar faces
• Social: reliable social smiles, early cooing and vowel sounds
• Feeding: 6 to 8 feeds per day, more efficient than the newborn phase
• Sleep: some babies start one longer stretch of 4 to 5 hours at night

These are typical ranges, not targets. Every baby has their own pace, and small differences from these figures are rarely a cause for concern.

Physical development

One of the most noticeable changes around two months is what happens during tummy time. In the newborn weeks many babies could barely lift their head at all; by eight weeks most can hold their head up briefly and some will push up on their forearms to get a better look at the world. This takes real effort, and you will often see them trembling slightly before they lower back down. Short, frequent tummy time sessions of two to three minutes several times a day help build the neck and shoulder strength they need for later milestones.

Weight gain tends to be rapid during the first few months. Most babies have regained their birth weight by about two weeks and then gain roughly 150 to 200 g (5 to 7 oz) per week through the early months. By two months many babies have grown noticeably, and newborn clothing rarely fits any more. Head circumference is also increasing steadily as the brain continues its rapid early development.

Skin may still be doing unexpected things: baby acne, dry patches, and the occasional rash are all common and usually self-resolving. Cradle cap (a yellowish, scaly patch on the scalp) is harmless and very common at this age. If you are concerned about any skin change, your health visitor or doctor can take a look.

Feeding

For most families, feeds at two months are becoming noticeably more manageable. Babies are stronger, more coordinated feeders, and their stomach capacity has grown, which means they can take slightly more at each feed and go a little longer between them.

Breastfed babies typically feed 6 to 8 times in 24 hours at this stage. Formula-fed babies may go a little longer between feeds. You might find that cluster feeding in the evenings has eased, or that feeds that used to take 40 minutes now take 15. Both are signs of an increasingly efficient baby, not a sign that supply has dropped or that something is wrong.

Growth spurts can still disrupt this rhythm. A day or two of more frequent feeding is normal and is your baby's way of signalling for more milk if you are breastfeeding. Following hunger and fullness cues rather than a strict schedule tends to work well at this age. Watch for early hunger cues: rooting, hand-to-mouth movement, or restlessness, rather than waiting for crying which is a late signal.

If you are breastfeeding and have any concerns about latch, supply, or pain, an International Board Certified Lactation Consultant (IBCLC) can offer personalised support. Many areas also have peer support groups and health visitor breastfeeding clinics.

Sleep

Sleep remains fragmented for most families at two months. Newborns sleep in short cycles and cannot yet link those cycles together the way adults do. Around this age, though, some babies start offering one slightly longer stretch, often 4 to 5 hours, usually at the beginning of the night. If your baby does this: enjoy it. If they do not: that is also normal and developmentally appropriate.

Total sleep in 24 hours is still around 14 to 17 hours for most two-month-olds, distributed across night sleep and several naps during the day. Naps at this age are often short and inconsistent. Many parents find it helpful to focus on daytime predictability (a loose pattern of feed, wake, sleep) rather than trying to impose a rigid schedule, which rarely works well before about four months.

Safe sleep remains important at every nap and every night: a firm, flat surface, on their back, in your room but in their own sleep space, with no loose bedding, pillows, or sleep positioners. This guidance applies consistently through the first six months.

Health and senses

Two months marks a significant moment in many places because this is when the first vaccine appointment typically falls. The exact vaccines vary by schedule, but many include a combined diphtheria, tetanus, whooping cough, polio, Hib, and hepatitis B vaccine (sometimes called the 6-in-1), along with meningococcal B and an oral rotavirus vaccine. Some schedules also include a pneumococcal vaccine at this visit.

It is very common for babies to be unsettled, drowsy, or to develop a mild fever in the 24 to 48 hours after their vaccines. The injection sites may be red and tender. This is a normal immune response, not a sign that something has gone wrong. An age-appropriate dose of infant paracetamol can help with any discomfort or fever. Offer feeds regularly and keep your baby comfortable. Contact your health professional if your baby has a high fever that does not come down, cries inconsolably for more than three hours, seems very pale or floppy, or you are otherwise worried.

Sensory development is moving quickly at this stage. Two-month-olds are increasingly alert and interested in the world. Their vision, which was quite blurry in the early weeks, is sharpening, and most babies can now track a slowly moving object across the midline, meaning all the way from one side to the other. They will often stare intently at faces, particularly the contrast of a hairline against a forehead, or the movement of a mouth. High-contrast patterns and bold colours hold their attention well.

Hearing is well developed from birth, but your baby is getting better at turning toward sounds and recognising familiar voices. You may notice them quieting when they hear your voice even before they can see you. This is the beginning of the social and language development that will accelerate over the coming months.

What comes next

The three-month mark brings several things that many parents find encouraging. Colic, if it has been present, typically peaks around 6 to 8 weeks and often begins to resolve around 12 weeks. Sleep, for some families, starts to consolidate a little further. Social interaction becomes richer: more sustained eye contact, longer vocal exchanges, and the beginning of something that looks quite a lot like a conversation.

Motor development continues with improved head control and the start of swiping at objects. Your baby may begin to show preferences for faces or voices, and you will likely see the repertoire of sounds expanding from simple vowels to more varied cooing.

The next vaccine appointment in many places falls at around 12 to 16 weeks, depending on the local schedule. Your health professional will advise on the specific timing and vaccines for your area.

Above all, two months is a time to notice and enjoy the connection that is forming. The newborn who slept through feeds and stared blankly at the ceiling is becoming a person who knows your face, responds to your voice, and, on a good day, rewards your exhausted smile with a gummy one of their own.

Frequently asked questions

When do babies start smiling for real at two months?

Most babies produce their first genuine social smile between 6 and 8 weeks. Unlike the early reflex smiles seen in the newborn period, these are triggered by your face, your voice, or eye contact. By 8 to 10 weeks many babies will reliably smile in response to interaction, and some will even hold a brief back-and-forth exchange of smiles and coos.

How often should a two-month-old feed?

At two months most babies feed around 6 to 8 times in 24 hours. Feeds often become slightly more spaced out and more efficient compared to the newborn weeks as babies get stronger at sucking and their stomach capacity grows. Breastfed and formula-fed babies can vary quite a bit, so follow your baby's hunger and fullness cues rather than watching the clock.

What happens after the 8-week vaccines?

It is very common for babies to be unsettled, drowsy, or feverish for 24 to 48 hours after the 8-week vaccines. The injection site may be red and tender. Paracetamol at the age-appropriate dose can help with pain and fever. Keep offering feeds, and contact your health professional if your baby has a high fever that does not come down, cries inconsolably for more than three hours, or seems unusually unwell.

Is it normal if my two-month-old still wakes every 2 to 3 hours at night?

Yes, completely normal. Some babies at two months manage one longer stretch of 4 to 5 hours, but many still wake every 2 to 3 hours throughout the night and that is developmentally appropriate. Night feeds remain important for nutrition and milk supply at this age. Longer sleep stretches tend to consolidate gradually over the coming months.