©2018 WebMD, Inc. All rights reserved. eMedicineHealth does not provide medical advice, diagnosis or treatment. See Additional Information.

Pregnancy and Fetal Development

Picture of Second Trimester (20 Weeks)

Picture of Second Trimester (20 Weeks)

This photo shows a baby at 20 weeks gestational age during the second trimester of pregnancy. At this stage:

  • The baby is active and you may feel him or her moving more.
  • The baby is enveloped in a protective coating called vernix and lanugo, fine hair. These protect developing skin that lies underneath.
  • Fingernails, toenails, eyebrows, and eyelashes have formed. The baby is capable of scratching him or herself.
  • The baby is able to hear and swallow at this stage.
  • The baby weighs approximately 9 ounces and is about 6 inches long at this stage.
Image Source: Petit Format / Photo Researchers, Inc.

Text Reference: American Pregnancy Association: "Fetal Development: Second Trimester"