Pregnancy Information Center

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A Baby's Story: 3D Ultrasounds of Every Week

Week 40: Pregnancy Week By Week 3D Ultrasound Images

Week 40: Pregnancy Week By Week 3D Ultrasound Images

This is it! You've reached 40 weeks, congratulations!

A baby born at week 40 weighs on average 7 pounds (3,300 grams) and is about 20 inches long (51 cm). At birth, your baby might be covered with vernix and blood and have some skin discoloration. Your baby’s genitals may also appear enlarged due to your hormones in the baby’s system. These variations are completely normal and should disappear within a few days.

As soon as she emerges from the womb, the mucus will be suctioned out of your baby’s mouth and you will hear her first cry! The umbilical cord will then be cut — often by the baby’s dad. A series of quick tests (such as an apgar score) will be performed to test the baby’s vital signs and then you will finally be able to hold your little one in your arms!

Your journey through pregnancy will have come to an end and your family will have grown by one, two or even three. However, your adventures with your newborn are just beginning. We wish you the best of luck and remind you to treasure the experiences that are going to fly your way!

Published October 11, 2010. The clinical images and information presented in this application represent normal fetal growth during a typical pregnancy. The images and information are to be used for educational purposes only and not for diagnostic purposes. Please consult a licensed physician regarding any specific questions pertaining to your pregnancy.