7 Week Old Baby: More Smiles, Longer Awake Times and What to Expect

Your Baby at 7 Weeks Old

A 7 week old baby is more sociable — smiling and cooing more, with longer awake, alert windows — while still within the Canadian Paediatric Society's normal "peak" crying period of 3 to 12 weeks. Feeds run on cue, and a 7 week old may sleep as much as 18 hours a day, for 3 to 4 hours at a time. The first routine immunisations are usually given around 2 months.

Your 7 week old baby is spending more of the day awake and engaged — more smiles, more coos, more real back-and-forth. The connection you've been building is starting to feel like a conversation.

This guide covers what to expect this week: the growing sociability, feeding and sleep, the fussiness that's still normal now, and the 2-month checkup and first immunisations just ahead.

Your Life This Week: The Parent Experience

Seven weeks in, more awake time can be lovely and demanding at once — more play, but also more to soothe. Some fussiness is still normal: the Canadian Paediatric Society's peak crying period runs to about 12 weeks, and it will get better.

Use your baby's longer alert windows for connection and their sleepy stretches for your own rest. Keep leaning on help, and when the crying feels like too much, put your baby down somewhere safe and take a few minutes — never shake your baby.

The "baby blues" affect up to 80% of new mothers and usually ease within a few weeks, the Canadian Paediatric Society notes. If low mood, anxiety or a sense of disconnection lingers or feels heavier than that, it may be postpartum depression, which affects about 13% of new mothers, and as many as 10% of fathers. It is treatable — please tell your doctor or public health nurse.

Feeding Your 7 Week Old Baby

A 7 week old baby feeds on cue. The Canadian Paediatric Society advises feeding on demand — whenever your baby is hungry — with frequent feeds normal in these early weeks. For formula, follow the feeding chart on your formula's packaging and let your baby's cues guide the amount. The CPS signs of feeding well still apply: six or more wet diapers a day, a content baby, and steady weight gain.

Some cluster feeding and fussiness may still come and go, often around the normal peak crying period of 3 to 12 weeks. This is normal. The Canadian Paediatric Society is clear that colic happens in both breastfed and bottle-fed babies, and that switching formulas probably won't reduce crying — so offer calm, paced feeds and comfort.

Whether you breastfeed, formula feed or combine the two, your baby's rapid brain and vision development runs on the right nutrients — DHA, iron and vitamin D among them. If breastfeeding isn't an option, the Canadian Paediatric Society advises a store-bought, iron-fortified, cow-milk-based infant formula for the first 12 months — fortified to provide these.

A note on formula this week. As awake windows get longer, feeds become more interactive — a chance for eye contact and connection. MOF's organic Stage 1 formulas, such as HiPP Dutch Stage 1, are iron-fortified and suitable from birth through 6 months, providing the DHA, iron and vitamin D your baby needs. Formula is a good choice whenever it's the right one for your family.

Sleep at 7 Weeks: What's Normal & How to Help

A 7 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 — and waking to feed at night is normal and healthy. Some babies begin to show a slightly longer overnight stretch, but reliable settled nights aren't here yet.

This is developmentally on track. The Canadian Paediatric Society notes that sleep habits become more predictable sometime after 3 months, so from here you may gradually see longer stretches emerging. No method will force settled nights before your baby's body is ready.

Keep reinforcing day and night: bright, active days and calm, dim, quiet nights. Put your baby down drowsy but awake when you can, and protect your own rest where possible.

Safe sleep reminder: always place your baby on their back for every sleep, on a firm flat mattress with a tightly fitted sheet and no loose, soft items, in a crib, cradle or bassinet in your room for the first 6 months. The Canadian Paediatric Society advises this lowers the risk of SIDS.