Your Baby: Week 21

fetal development

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

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Baby makes strong kicks and turns.

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

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

WebMD Medical Reference Reviewed by Traci C. Johnson, MD on June 10, 2016
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