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    My Baby's Growth

    Fetal development - month 4

    Second trimester

    At the end of 4 months:

    • Baby is 6-1/2 to 7 inches long.
    • Weight is about 6 to 7 ounces.
    • Baby is developing reflexes, such as sucking and swallowing, and may begin sucking thumb.
    • Tooth buds are developing.
    • Sweat glands are forming on palms and soles.
    • Fingers and toes are well defined.
    • Gender is identifiable.
    • Skin is bright pink, transparent and covered with soft, downy hair.
    • Although recognizably human in appearance, the baby would not be able to survive outside the mother’s body.

    Month 4