He's also holding his head up on his own for an extended amount of time. And about a week and a half ago, he smiled at me after I was talking to him. Although he has a lot of fussy times, especially during the day, he's slept for at least 4.5 hours strait during the night. And that makes me very happy, because I get to sleep too :)
I also figured I'd share my 4 week postpartum belly. At this point, I've lost a total of 33 pounds, and I only gained 26 pounds during the pregnancy.