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fertilization
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Begins to exist after fertilization
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Pronuclei join together
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1st mitotic division
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Occurs when mitosis begins to divide
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2nd mitotic division
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3rd mitotic division
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3rd cleavage
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embryo to blastocyst
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Implantation
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Ectopic pregnancy can occur
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Disk with streak on the underside forms mesoderm
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hCG begins to be secreted
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First missed period
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Heart begins to beat, arm & leg buds appear, yolk sac makes RBCs
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Neural tube forms
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Face plates forming
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Cleft lip or palate may occur
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Occurs when majors changes occur in the baby development
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Muscles form, bent neck, webbed hands and feet, segmented back
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Fingers & toes separate, eyes & ears formed
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Genitalia begins to differentiate, eyelids fuse, amnion surrounds fetus
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Amniocentesis could be performed
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Chorionic villi sampling could be performed
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Occurs when the baby is in the womb gaining pounds
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Eyes open, fat added under skin, head out of proportion to the body
