How is my baby growing and developing during week 20?


At 20 weeks the fetus weighs about 10.5 ounces and is about 10 inches long: head to heel. The fetus is swallowing amniotic fluid, and producing meconium which will remain in the intestine until birth. The fetus is beginning to extend and flex its arm and legs and moving around in the uterus. Beginning at 20 weeks many of the fetus’ activities and behaviors are focused on refining body systems and functions to prepare for survival after birth.

During week 20 of pregnancy, you have reached the halfway point! Hair, fingernails, and toenails will continue to grow during this week. As the white, wax-like film (called vernix caseosa) has developed, covering and protecting your baby, the skin will continue to grow and become thicker. The different layers of the skin will start to form. If you haven't yet been able to determine the baby's sex, at this point that information should be clear. Your baby's digestive system is developing right along, too; week 20 is often the first week your baby will begin producing a sticky, dark material called meconium.

Continue Learning about Week 20 Of Pregnancy

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.