We're halfway there! Tomorrow is the big ultrasound and we'll get to see the little one bouncing around. Hopefully we won't see any "goods" accidentally so the cake reveal will remain a surprise even to us. We plan to take the results straight to the bakery so we can get the cake made in time for the party on Thursday night.
Here's more about 20 weeks:
Your baby weighs about 10 1/2 ounces now. He'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, when a baby's legs are curled up against his torso and hard to measure, measurements are taken from the top of his head to his bottom — the "crown to rump" measurement. After 20 weeks, he's measured from head to toe.)
He's swallowing more these days, which is good practice for his digestive system. He's also producing meconium, a black, sticky by-product of digestion. This gooey substance will accumulate in his bowels, and you'll see it in his first soiled diaper (some babies pass meconium in the womb or during delivery).
I will probably update again after the ultrasound in the morning.