Pregnancy and Fetal Development

Picture of First Trimester (8 Weeks)

Picture of First Trimester (8 Weeks)
First Trimester: The Baby at 8 Weeks
  • All major organs and external body structures have begun to form.
  • Your baby's heart beats with a regular rhythm.
  • The arms and legs grow longer, and fingers and toes have begun to form.
  • The sex organs begin to form.
  • The eyes have moved forward on the face and eyelids have formed.
  • The umbilical cord is clearly visible.
  • At the end of 8 weeks, your baby is a fetus and looks more like a human. Your baby is nearly 1 inch long and weighs less than 1/8 of an ounce.
Reviewed by William C. Shiel Jr., MD, FACP, FACR on August 21, 2009

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Text: - Healthy Pregnancy: Stages of Pregnancy