Fetal Development Week by Week – Week 39

Fetal Development Week by Week – Week 39

A healthy range of weight is between 5 pounds and 11 ounces and 8 pounds 5 ounces.  Your baby is probably somewhere in this range now.  The umbilical cord doesn’t have any nerve endings (this means that you and your baby will not feel any pain when it is cut!) and is about 20 inches long and about ½ inch thick.  It’s pretty common for the umbilical cord to get knotted at this point, because things are so crowded inside the uterus.

All of your baby’s organs, including the lungs are ready for birth now.  Your baby’s immune system is gaining strength at this point.  Right now, you are probably very uncomfortable and can hardly stand the wait.  Try to take it easy and rest when you can, long naps and reading can help you through the last few days of your pregnancy.  Remember that very few babies are born on their due date. 



Related Weeks

Fetal Development – Week 38 | Fetal Development – Week 40



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