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Baby’s Pregnancy Calendar |
Blood Cells and Bone Marrow 15 weeks old / 17 weeks pregnant (since LMP)
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Script: By 15 weeks, blood-forming stem cells arrive and multiply in the bone marrow. Most blood cell formation will occur here. |
| See Snapshots |
Blood Cells and Bone Marrow
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Quickening
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Movement
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Hormonal Stress Response
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Vernix Caseosa
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Bronchial Tree
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