31 Weeks

Robert feels like he is just so big, though I know he will just be getting bigger. He should now weigh a little more than 3 pounds, comparable to four naval oranges, and should be about 16 inches long. 

"He can turn his head from side to side, and his arms, legs, and body are beginning to plump out as needed fat accumulates underneath his skin. He's probably moving a lot, too, so you may have trouble sleeping because your baby's kicks and somersaults keep you up. Take comfort: all this moving is a sign that your baby is active and healthy."

Source

^^A video describing the 28th-37th weeks^^

Just for fun,

 here is a list of his nicknames since we found out about him.

Olive

Stringbean

Robert Edward Lee

The General

Bob

Bobble

Wiggle Worm