Milestone: From tummy to sitting position!

Milestone Alert! Today marks the first official time we've caught him moving from a tummy to sitting position unassisted. I first saw him do it in his crib this morning, but for whatever reason, he seems more mobile in his bed (or on any bed) than on the flat floor, so I assumed he had that advantage and wouldn't yet be able to do it from the floor. Then, at lunch time today, Henry and Daddy were playing with his choo-choo train. He had turned it over to dump the little balls out of it, and rolled to his tummy to attempt to go after them. When he gave up, he used the train to support himself while he pushed up to a sitting position. Still, I gave credit to the train as his support, and doubted he would quite be able to do without it. And then, after Daddy went back to work, he did it twice by himself, with nothing to support himself. My big boy!!! Keep it tuned here for more updates on Henry's milestones!