No Baby Fat?

My baby's not chubby! Today I was looking at someone else's ultrasound picture that a friend commented on. The baby in the ultrasound is due about the same time as my baby but has this cute little baby fat belly! I thought my baby didn't have baby fat because he was working on getting everything else ready but now i'm convinced that he just moves so much he's working any baby fat he could have on him off. I guess my baby's picture was in 3D so its a little harder to compare to a 2D. ... I just looked searched facebook for other friends ultrasound pictures and it looks like that baby just had lots of baby fat. That's somewhat of a relief but I still think my baby's movement is affecting his weight gain. Seriously child what am I going to do with you.