Below is an update on baby's development during week 36, from Baby Center:
Your baby is still packing on the pounds — at the rate of about an ounce a day. He now weighs almost 6 pounds and is more than 18 1/2 inches long. He's shedding most of the downy covering of hair that covered his body as well as the vernix caseosa, the waxy substance that covered and protected his skin during her nine-month amniotic bath. Your baby swallows both of these substances, along with other secretions, resulting in a blackish mixture, called meconium, will form the contents of her first bowel movement.
Comparison belly shot (no 36 week shot of Addie, but here's her 35 week shot).