Baby Milestones by Month: What to Expect Each Stage
Watching your baby grow is one of the most exciting parts of parenthood. Each month brings new skills, from that first smile to the first steps....
The Alppi Journal
Baby development: milestones, play & learning
Every baby develops on their own timeline. Use these guides to see what's typical each month, find play ideas that support it, and know when to check in with your pediatrician.
51 guidesWritten for real-life parents
Series
Milestones, month by month
Typical ranges, not deadlines. Tap a month for what to watch for and how to play.
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1mo
1 Month Old Milestones: What to Watch and Support
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2mo
2 Month Old Milestones: What Parents Should Expect
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3mo
3 Month Old Milestones: What Parents Should Expect
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4mo
4 Month Old Milestones and Baby Development Guide
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5mo
5 Month Old Milestones Parents Must Look Out For
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6mo
6 Month Old Milestones: What Parents Should Expect
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7mo
7 Month Baby Milestones: What to Expect
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8mo
8 Month Baby Milestones: Baby Development Guide
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9mo
9 Month Baby Milestones: Development Guide
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10mo
10 Month Baby Milestones: What to Expect
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11mo
11 Month Old Milestones: Baby Development Guide
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12mo
Red Flags in 1-Year-Old Milestones Parents Must Know
Big firsts9
Play & toys13
From our shop
Montessori-inspired toys
Stack & sort
Alppi Lion Stacking Tower 8-Layer Sensory Toy
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Eight layers to stack, sort and knock over again.
8-in-1
Alppi Animal Activity Bus 8-in-1 Wooden Learning Toy
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Eight activities in one bus for busy hands.
Big feelings & behavior7
Quick answers
Frequently asked questions
When should I worry about a missed milestone?
Milestones are ranges, and babies often focus on one skill at a time. If your baby loses a skill they had, or you notice several missed milestones for their age, talk to your pediatrician. They can screen development at well visits.
When do babies sit up, crawl and talk?
Many babies sit with support around 4-6 months, crawl somewhere between 6 and 10 months, and say a first word around their first birthday. Some skip crawling entirely, and that's often fine.
What is the hardest month with a baby?
Many parents find the first 6-8 weeks hardest, then again around sleep regressions and separation anxiety. Every family is different. Our guide on the hardest months walks through why.
