I just watched as Marlo - age six months, one week and six days - scooted herself over to the ottoman, got on her knees, and pulled herself up. Once holding onto the ottoman, she surveyed the items resting on its surface before selecting one of her books over the TV remote. She then managed to work herself back into a sitting position and sat quietly turning the pages. It was all very casual for the momentousness of the achievement.
The downside to these strides in mobility is that, well, she's starting to move, for one. And when she is not moving, she is trying unsuccessfully to move, which apparently causes her a lot of angst. There have been many tears shed these last couple of weeks, mostly out of frustration.
It was bad enough when I had to try to not kill her, and now I have to keep her from killing herself? Man. This is going to be a long 18 years.