Your baby’s first year is the most rapid period of human development — and it happens fast. This guide gives you the exact milestones to expect each month: what your baby should be doing, what is still within range, and what warrants a conversation with your pediatrician.
Keep in mind: milestones describe what most babies can do by a certain age — not what every baby must do at exactly that time. A range of a few weeks is normal. What matters is progression over time.
Same-day and next-day appointments available.
0–3 Months: Foundations
- Physical: Lifts head briefly during tummy time; opens and closes hands; tracks movement with eyes
- Social: Smiles in response to your face (typically by 6–8 weeks); makes eye contact; recognizes your voice
- Communication: Coos and makes soft sounds; cries differently for hunger vs. discomfort
- Red flag: Not responding to loud sounds; not making eye contact by 8 weeks
4–6 Months: Exploring
- Physical: Rolls front to back (then back to front); holds head steady without support; reaches for objects
- Social: Laughs aloud; recognizes familiar faces; shows excitement when feeding time approaches
- Communication: Babbles; makes different sounds for different needs; turns toward sound
- Red flag: Not rolling either direction by 6 months; not reaching for objects
7–9 Months: Moving
- Physical: Sits without support; begins to crawl or scoot; transfers objects hand to hand; pincer grasp emerging
- Social: Stranger anxiety begins; plays peek-a-boo; clearly prefers familiar caregivers
- Communication: Babbles strings of consonants (“ba-ba-ba”); responds to own name
- Red flag: Not sitting with support by 9 months; no babbling with consonants
10–12 Months: Getting There
- Physical: Pulls to stand; cruises along furniture; may take first steps; uses cup with help
- Social: Waves bye-bye; plays simple games; shows objects to caregivers; points to things they want
- Communication: Says 1–2 words with meaning (“mama,” “dada,” “no”); understands simple commands
- Red flag: No words by 12 months; not gesturing (pointing, waving) by 12 months
When to Talk to Your Pediatrician
Early intervention makes the biggest difference when there are developmental delays. Contact your pediatrician if your baby:
- Loses skills they previously had at any age
- Does not make eye contact or social smiles by 2 months
- Does not babble by 9 months
- Does not point or gesture by 12 months
- Does not say any words by 12 months
- Does not walk independently by 15 months
At Omega Pediatrics, we screen for developmental delays at every well-child visit. If you have concerns between visits, schedule a developmental check here.
