Prenatal Development

By ak001930
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    Zygote

    First two weeks
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    Embryo

    Week 3-8
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    Fetus

    9 week - birth
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    First trimester

    1-13 weeks
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    Second Trimester

    14-26 weeks
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    Third Trimester

    27-40 weeks
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    Week of sex detection

    16 weeks
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    Week of viable

    24 weeks
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    Full term pregnancy

    40 weeks