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The Endowment for Human Development

The Endowment for Human Development

Improving lifelong health one pregnancy at a time.

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From The Biology of Prenatal Development.

Script: 雖然6週胚胎開始運動，孕婦在14至18週之間首次感到胎兒運動。傳統上把這個事件叫做胎動初覺。

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.

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4D Ultrasound

4D Ultrasound

4D Ultrasound

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Quickening

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Movement

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4D Ultrasound

Hormonal Stress Response

Hormonal Stress Response

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