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Your Baby: Week 21

fetal development

Hotspot: 267,613

If your baby is a boy, his testes have formed but remain in his abdomen.

Hotspot: 573,711

Baby makes strong kicks and turns.

Hotspot: 295,720

Brown fat forms, which helps produce heat to keep your baby warm.

Hotspot: 180,54

From head to heel, your baby is about as long as a large butternut squash -- 10.5 in.

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