20 weeks

You’re at the halfway mark ‹ congratulations! Your baby weighs about 10 1/2 ounces now. She’s about 10 inches from head to heel. (The way your baby is measured now changes.) A greasy white substance called vernix caseosa coats your baby’s entire body to protect her skin during its long submersion in amniotic fluid. She’s also producing meconium, a black, sticky substance made of dead cells, digestive secretions, and swallowed amniotic fluid, which will accumulate in her bowels and end up in her first diaper.

P.S. She’s actually 11 oz, but that’s good! Maybe that means the extra 3 lbs I’ve put on are due to her additional .5 oz. Heh.