Baby Development

Track your baby's development from the first days of life through the toddler years — milestones, sleep, feeding, and play.

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Sleep
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Feeding
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Milestones
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Activities
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Health
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Safety

Track by age

NewbornWeeks 1–4
Week 1Week 2Week 3Week 4
Baby by MonthMonths 1–12
1 Month2 Months3 Months4 Months5 Months6 Months7 Months8 Months9 Months10 Months11 Months12 Months
Toddler Development15 Months–5 Years
15 Months18 Months2 Years2.5 Years3 Years4 Years5 Years

shopping_bagBaby gear picks

Browse all baby gear →
Editor's pick

BabyBjörn Baby Carrier Harmony

Ergonomic 3D mesh carrier supporting newborn through facing-out and back carry positions.

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Best value

Graco Benton 5-in-1 Convertible Crib

Long-lasting convertible crib that transforms from infant crib to toddler bed and full-size bed.

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Editor's pick

Owlet Dream Duo Smart Monitor

Premium 2-in-1 monitor combining 2K HD video with the Dream Sock that tracks heart rate and oxygen levels.

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Baby Development

Physical, language, cognitive, and social milestones.

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Explore thousands of names by origin and meaning.

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Expert guides on naps, regressions, and routines.

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