Infant · Behaviour & Emotions

Behaviour & Emotions for the Infant stage (3 – 12 mo).

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All Behaviour & Emotions guides for Infant

Your Baby's Emotional Milestones: What to Expect Month by Month

Between 3 and 12 months, your baby's emotional world explodes — from basic comfort-seeking to recognisable joy, fear, and frustration — and how you re...

19 min read May 16, 2026