
Quick Facts
| عمر | 2 weeks |
| Length | ~45–54 cm (WHO range, at birth) |
| Weight | ~2.4–4.4 kg (WHO range, at birth) |
| Daily Sleep | Up to ~18 hours (in stretches of 3–4 hours) |
| Feedings per Day | 8–12 times (feed on cue) |
| Formula Amount | On cue — follow your formula's feeding chart |
Length and weight are the WHO 3rd–97th percentile range (both sexes) from the WHO Growth Charts for Canada. Your provider tracks your baby's own growth on these charts.
Key Takeaways
At 2 weeks old, most babies are still driven by reflexes, with muscle tone slowly building.
Physical Development
A 2 week old baby is still governed by newborn reflexes — rooting, sucking, grasping and the startle (Moro) reflex — while strength quietly builds. Short, supervised tummy time helps: the Canadian Paediatric Society notes that very young babies need tummy time each day, while they are awake, to strengthen the muscles in the neck and upper body. By the end of 3 months, most infants can raise the head and chest during tummy time.
Vision
A 2 week old baby sees most clearly up close and finds the wider world blurry. High-contrast patterns, edges and faces hold their attention best. Your baby may briefly lock onto your face during a calm, alert moment. Smooth tracking of a moving object is a milestone the Canadian Paediatric Society places by the end of 3 months.
Hearing & Recognition
Your baby's hearing works from birth, and a 2 week old baby increasingly calms to familiar sounds — your voice most of all. Gentle talking, humming or a soft song can settle a fussy baby because these sounds are already familiar. Sudden noises may still trigger the startle reflex, which is normal.
DEVELOPMENT & PLAY
- Offer short, supervised tummy time a few times a day while your baby is awake, to build neck and upper-body strength.
- Keep talking, humming and singing through feeds and diaper changes — your voice is your baby's favourite sound.
- Hold your baby skin-to-skin, which helps steady their temperature, heart rate and stress and supports bonding.
ROUTINES & SLEEP
- Watch for early tired cues — yawning, looking away, fussing — and settle your baby before they become overtired.
- Keep days bright and sociable and nights calm and dim, avoiding stimulation during night feeds and diaper changes, as the Canadian Paediatric Society suggests.
- Practise safe sleep every time: on the back, on a firm flat surface, in a crib in your room, with no loose bedding.
HEALTH
- If you haven't had your baby's first newborn check yet, book it — your provider checks weight, feeding, jaundice and the cord.
- Keep the umbilical cord stump clean and dry; contact your provider if the surrounding skin is red, swollen or smelly.
- Breastfed babies need a daily 400 IU vitamin D supplement from birth, per Health Canada and the Canadian Paediatric Society. Formula-fed babies don't — vitamin D is already added to formula.
أسئلة مكررة
How much should a 2 week old baby eat?
A 2 week old baby feeds on cue — the Canadian Paediatric Society advises feeding on demand, and notes breastfed newborns feed 8 to 12 times in 24 hours in the first few weeks. Formula amounts vary, so follow the feeding chart on your formula's packaging. Six or more wet diapers a day, soft yellow stools and a content baby are the signs your 2 week old is getting enough.
Why is my 2 week old baby cluster feeding?
Cluster feeding — short feeds bunched close together, usually in the evening — is normal, the Canadian Paediatric Society notes, and may mean your baby is going through a growth spurt. It isn't a sign of low supply or a problem with formula. Offer calm, unhurried feeds and comfort; it comes and goes over the early weeks and settles on its own.
How long should a 2 week old baby sleep?
A 2 week old baby may sleep as much as 18 hours a day, for 3 to 4 hours at a time, according to the Canadian Paediatric Society. Waking to feed through the night is normal and healthy at this age. Sleep becomes more predictable sometime after 3 months, so there's no long night stretch yet.
Does changing formula help a fussy 2 week old?
Usually not. The Canadian Paediatric Society notes that colic and crying happen in both breastfed and bottle-fed babies, and that switching from one formula to another probably won't help the crying. Fussiness at this age is more often about a growth spurt, tiredness or a normal newborn phase. Speak to your doctor before changing formula or trying colic products.
Is tummy time safe for a 2 week old?
Yes. The Canadian Paediatric Society recommends tummy time each day for very young babies, while they are awake, to strengthen the neck and upper-body muscles. Keep sessions short and always supervise them. Tummy time is only for awake, watched moments — always place your baby on their back to sleep.
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