3 min readDevelopment · 0–3 months
When do babies start to smile?
A newborn may smile during sleep or by chance. A social smile in response to your face or voice often becomes clearer towards the end of the second month.
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Development
Clear, reassuring, source-based guidance for everyday questions.
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60 guides
3 min read4 min readDevelopment · 2 months
What can a 2-month-old baby do?
The CDC’s May 2026 guide describes skills most babies show by 2 months, including looking at faces, responding to voices and lifting the head during tummy time.
4 min readDevelopment · 3 months
What can a 3-month-old baby do?
Three months is a transition between the CDC’s 2- and 4-month checklists. Learn what may be strengthening now and which 4-month skills are not yet expected.
4 min readDevelopment · 0–3 months
When do babies make eye contact?
Newborns may briefly focus on faces nearby, but steady looking and visual tracking develop over the first months.
4 min readDevelopment · 0–3 months
How can I tell if my baby’s development is on track?
Development is not judged by one skill or one day. Look at social, communication, learning and movement progress over time.
4 min readDevelopment · 0–3 months
Newborn Weight: Early Loss and Gain in the Following Weeks
Separate early newborn weight loss from later gain, read measurements alongside feeding and nappies, and recognise when assessment should not wait.
5 min readDevelopment · 10 months
10-Month-Old Baby Development: Everyday Skills and Games to Try Together
Explore your 10-month-old baby’s movement, hand skills and communication, with safe play ideas and guidance on discussing developmental concerns.
5 min readDevelopment · 11 months
11-Month-Old Baby Development: Imitation, Communication and Purposeful Play
Recognise imitation, purposeful exploration and communication at 11 months, with everyday games, safe movement and signs to discuss with a professional.
4 min readDevelopment · 12 months
12-Month-Old Baby Development: Looking at the Whole Picture
Consider movement, communication, play and everyday participation together at one year, and prepare observations to discuss at your baby’s development review.