Here's something worth knowing before you read any milestone chart, including this one: a lot of the milestone information still circulating online is outdated. The CDC significantly revised its developmental milestone checklists, and the changes were bigger than most people realise - crawling was removed as a required milestone entirely, and the expected age for walking moved later. If you've been comparing your baby against a chart that still says 'walking by 12 months,' that chart hasn't caught up.
How to Read This Guide - Developmental milestones describe a general range, not a deadline. They exist to guide conversation with your paediatrician, not to be a pass/fail test for your baby. Individual variation within the normal range is wide and expected.
Why the Milestones Changed
The older milestone ages were based on the 50th percentile - the point where exactly half of children had reached a skill and half hadn't. That meant half of perfectly normal babies were technically 'behind' on any given milestone at any given age, which caused a lot of unnecessary worry. The updated milestones are based on the 75th percentile instead, meaning the listed age is when about three-quarters of children have reached that skill - a more reassuring, and arguably more useful, benchmark.
Month-by-Month: What to Actually Expect
|
Age |
Physical & Motor |
Social & Language |
|
2 months |
Holds head up briefly during tummy time; smoother movements |
Smiles when you talk to them; makes sounds other than crying |
|
4 months |
Holds head steady without support; pushes up on arms during tummy time |
Smiles on their own to get your attention; makes cooing sounds back and forth |
|
6 months |
Rolls from tummy to back; sits with support; leans on hands when sitting |
Takes turns making sounds with you; blows raspberries; puts things in mouth |
|
9 months |
Sits without support; pulls to stand; moves things from one hand to another |
Looks when their name is called; plays peekaboo; picks up small items with fingers |
|
12 months |
Pulls to stand and walks holding onto furniture ('cruising') |
Waves bye-bye; calls a parent by a special word (mama/dada); understands 'no' |
|
15 months |
Takes a few independent steps without support |
Tries to say one or two words besides mama/dada; follows simple one-step directions |
|
18 months |
Walks without holding onto anything |
Says several single words; points to show you something interesting |
|
24 months |
Kicks a ball; runs; climbs on furniture unassisted |
Uses two-word phrases; follows two-step instructions; sorts shapes and colours |
What This Table No Longer Includes
- Crawling - removed entirely as a milestone. Many babies skip it altogether and move straight from sitting to standing and walking, which is completely normal.
- Walking by 12 months - this expectation moved to 15 months for first independent steps, and 18 months for confident independent walking.
- Rolling by 4 months - moved to 6 months, reflecting a more realistic range for most babies.
How Trulittle's Products Fit Into This Window
The 0-6 month window on this chart - head control, rolling, early sitting - is exactly where tummy time and appropriate rest support matter most for physical development. An ergonomic head support pillow, used during supervised rest, complements the tummy time work your baby is doing to build the neck and shoulder strength behind several of these early milestones.
Around the 6-9 month mark, as babies move toward sitting and standing, is also typically when they're ready for the Adjustable Baby Bath Stand - designed specifically for babies who can stand with minimal support, right in this developmental window.
When a Milestone Delay Is Worth Discussing
A single missed milestone, on its own, is rarely a cause for alarm - the range of normal is wide. It's worth raising with your paediatrician if:
- Your baby is missing several milestones expected for their age, not just one
- A previously acquired skill seems to disappear (loss of skills is more notable than a delay in gaining new ones). You have a persistent gut feeling that something isn't quite right - parents notice things screening tools sometimes miss
Every scheduled well-baby visit is a built-in opportunity to raise any milestone question, and paediatricians expect and welcome these conversations.
Trulittle Baby Head Support Pillow. Supportive, ergonomic rest for the early months of head control and motor development. Rs. 1,999 | Free Shipping | COD Available
Sources & Further Reading
CDC - Learn the Signs. Act Early. (Developmental Milestones)
Zubler et al., Evidence-Informed Milestones for Developmental Surveillance Tools, Pediatrics (2022)
Read: Tummy time guide | Baby teething timeline
