Third Trimester Baby Development


 
  • Week 27 - Baby's hair is longer. Eyelashes and eyebrows are noticeable
  • Week 28 - Eyes are open and sensitive to light. Baby is approximately 15 inches long and weighs around 3 pounds
  • Week 29 - Baby gains about 7 ounces a week
  • Week 30 - Taste buds develop. All of baby's senses are developed
  • Week 31 - Vernix (a creamy coating on the skin) and lanugo (fine hairs) begin to disappear. Baby's head is more in proportion to the body
  • Week 32 - Skin is less wrinkled, but baby is still thin. Baby is approx. 18 inches long and weighs about 5 pounds
  • Week 33 - Baby's movements can be seen on the outside of the mother's abdomen
  • Week 34 - Skin is becoming pinker. Baby begins to blink
  • Week 35 - Fingernails and toenails have grown to the end of the baby's fingers and toes
  • Week 36 - All organs are mature at this point. Skin is red and smooth. Baby is approx. 19 inches long and weighs about 6 pounds
  • Week 37 - Deposits of fat continue to form. Baby is considered full-term
  • Week 38 - Baby gains approx. 1 oz a day. Baby may begin to move down into a pelvic area
  • Week 39 - Fine hair remains only on arms and shoulders. Fingernails are now beyond the ends of the fingertips
  • Week 40 - Baby is fully developed. Baby is approx. 20 inches long, weighs 7-8 pounds