Fetal development

Fetal Development Timeline

By Samantha Kauffman and Courtney Jones

  • Week 7

    Week 7
    The embryo is around 13 mm (1/2 inch) in length,
    arm and leg buds begin to grow, and
    the mouth opening is formed.
    http://www.baby2see.com/development/week7.html

  • Week 9

    Week 9
    The embryo has grown to measure 30 mm (1.2 inches) in length,
    the fingers and toes are well defined,
    the tongue begins to develop,
    and the main construction of the heart is complete.
    http://www.baby2see.com/development/week7.html

  • Week 11

    Week 11
    The fingers and toes have completely separated,
    the taste buds are starting to develop,
    the baby can swallow and stick out his or her tongue,
    their whole body except tongue is sensitive to touch,
    and if it is a boy, the testicles are starting to produce the testosterone hormone http://www.baby2see.com/development/week7.html

  • Week 15

    Week 15
    The baby is now over 4 inches long,
    he or she can move its arms and make a fist,
    their fingernails and toenails are grown in,
    and the baby's skin is still very thin.
    http://www.baby2see.com/development/week7.html

  • Week 18

    Week 18
    The baby is now 6 inches long and weighs 7 ounces,
    they can hear sounds,
    the baby has recognizable active and rest periods.
    http://www.baby2see.com/development/week7.html

  • Week 20

    Week 20
    The baby can now hear and recognize the mother's voice,
    the mother will probably start feeling the first fetal movements,
    the growth of hair on the rest of the body has started,
    and the skin is getting thicker.
    The heart can now be heard with a stethoscope. http://www.baby2see.com/development/week7.html

  • Week 23

    Week 23
    The baby is over 11 inches tall,
    weighs about a pound,
    and the eyebrows are visiblehttp://www.baby2see.com/development/week7.html.

  • Week 25

    Week 25
    The baby is around 13.5 inches in length and weighs 1 and half pounds,
    its bones are becoming solid,
    and their hands are now fully developed.
    http://www.baby2see.com/development/week7.html

  • Week 28

    Week 28
    The feet are just over 2 inches long,
    the hair on the baby's head is now clearly visible,
    and their eyes are starting to move in their socketshttp://www.baby2see.com/development/week7.html

  • Week 32

    Week 32
    The diameter of the baby's head is almost 4 inches,
    under the skin the fat layer is getting thicker,
    and now the toenails and fingernails are completely formed.
    http://www.baby2see.com/development/week7.html