OMG.. just watched DS go from his tummy to a sitting position all on his own! He has been pushing himself up into a crouching position on both his knees or on one knee and one foot a lot lately. He went from his tummy to one knee and foot and then pushed himself backwards to a sitting position! It took me a while to realize that this was a new accomplishment for him. He's 8.5 months. He is growing up so quickly! It's bittersweet..