prenatal timeline

  • 24 BCE

    week 17

    The fetus skin is still thin but it will start putting fat on.
  • 22

    week 18

    The fetus is covered in lanugo, a peach fuzz-like hair. It helps keep the fetus warm and provides another layer of protection.
  • 22

    week 21

    The fetus has bone marrow that helps it produce blood cells. Limb movements are coordinated and frequent
  • 23

    week 19

    fetus is getting stronger and you will begin to feel kicks and punches.
  • 23

    week 20

    The fetus’s nails grow towards the end of its fingers also the brain begins to develop.