Pregnancy

Prenatal Development

By austyn8214
  • Start of Period of Zygote

    Start of Period of Zygote

    First 2 weeks of pregnancy
  • Start of First Trimester

    Start of First Trimester

    week 1-12
  • End of the Period of Zygote

    End of the Period of Zygote

  • Start of the Period of Embryo

    Start of the Period of Embryo

    3-8 Weeks
  • End of the Period of Embryo

    End of the Period of Embryo

  • Start of the Period of Fetus

    Start of the Period of Fetus

    9-40 weeks
  • Start of Second Trimester

    Start of Second Trimester

    week13-27
  • week of sex detection

    week of sex detection

    18-20 weeks
  • week of viable birth

    week of viable birth

    23 weeks
  • Start of Third Trimester

    Start of Third Trimester

    week 28-birth
  • End of Period of Fetus

    End of Period of Fetus

  • full term pregnancy

    full term pregnancy

    40 weeks

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