He's a very rigid baby and could support his head really well from 2 days old, and he's always trying to stand or if you lay him down he's straining to lift himself up and he can almost get his whole upper body off the floor, so I figured he might be an early sitter, his cousin was the same and was walking (holding onto furniture) at 9 months!! I love seeing him achieve something new and sitting is a real milestone but its just another step to him turning into a little boy and not a baby, not sure I want an early walker lol!!!!