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The Endowment for Human Development
The Endowment for Human Development
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4D Ultrasound


4 months

Source: CREATE Fertility, London, UK.
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Quickening
Quickening
Movement
Movement
4D Ultrasound
4D Ultrasound
Hormonal Stress Response
Hormonal Stress Response
Vernix Caseosa
Vernix Caseosa
4D Ultrasound
4D Ultrasound
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