Sit or Stand, which is it?

Jaxson is getting big! This past Thursday, we took pictures of him sitting and standing in the pack-n-play, where there is plenty of cushion for when he falls. He's doing well sitting up though, and can stay on his own for about 15 seconds. And then when he stands against something, it lasts about 10 seconds. He seems way too young to be sitting or standing, but I guess its part of growing up.

Outfit by Janie and Jack.