The Adventures of Haley and Autumn

Baby Girl A The girls are about 12 ounces now. They are also around 6 1/2 inches long from head to bottom, and about 10 inches from head to heel. A greasy white substance called vernix caseosa coats their entire body to protect their skin during its long submersion in amniotic fluid. The girls are swallowing more, which is good practice for their digestive system. They are 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 their bowels, and you'll see it in their first messy diaper.