20 Weeks

15 Sep
Today is the official halfway mark!  At yesterday’s ultrasound, the technician said that all the baby’s measurements are right on target for our calculated dates.  Click here for an illustration of the baby at 5 months.
 
 
"Your baby weighs about 10 1/2 ounces now. She’s also around 6 1/2 inches long from head to bottom, and about 10 inches from head to heel. (For the first 20 weeks, we use measurements taken from the top of the baby’s head to her bottom — known as the "crown to rump" measurement. After that, we use measurements from head to toe. This is because a baby’s legs are curled up against her torso during the first half of pregnancy and are very hard to measure.)

A greasy white substance called vernix caseosa coats her entire body to protect her skin during its long submersion in amniotic fluid. (This slick coating also eases the journey down the birth canal.)

Your baby is swallowing more, which is good practice for her digestive system. She’s also producing meconium, a black, sticky substance that’s the result of cell loss, digestive secretion, and swallowed amniotic fluid. This meconium will accumulate in her bowels, and you’ll see it in her first messy diaper (although a few babies pass it in utero or during delivery). "

 
 
"You’re halfway there! Twenty weeks into your pregnancy, your baby has grown significantly from that first dividing cell. The fetus now weighs about 9 ounces (260 grams) and measures 5.5 to 6.3 inches (14 to 16 centimeters) from crown to rump. The baby’s growth is taking up increasing room in the uterus, and continued growth will put pressure on the mother’s lungs, stomach, bladder, and kidneys.

Under the vernix caseosa (a protective, waxy coating), your baby’s skin is thickening and developing layers, including the dermis, epidermis, and subcutaneous layer. Hair and nail growth continues this week."

 
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