Edwin weighs 15 lbs 5 1/2 oz today.  So, I'm just going to say that he was probably 15-4 at some point yesterday.  It seems fair enough.  So, in that case, he doubled his birth weight on our anniversary!  It's also when he turned 3 1/2 months old, more or less.  He's so much fun!  What a kid! HUGS!