20 Weeks

How your baby's growing? 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 — the length of a banana. (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).

What your baby looks like this week:

Sorry, no picture this week. I forgot my camera at home!

But, here is a chart for you old-timers who can't count in weeks:

Trimester	Month	Week
first	one	1-4
	two	5-8
	three	9-13
second	four	14-17
	five	18-21
	six	22-26
third	seven	27-30
	eight	31-35
	nine	36-40