Ds started commando crawling (really it was dragging..) at 8 months. Hands & knees crawling by 9 mths 3 weeks. Taking a couple of steps by 10 mths 3 weeks, walking a week or so before his first birthday.

He said dad-dad-dad at 10 mths 3 weeks, mum-mum-mum a week later. He has decided that he doesn't need to say mum now though. He 'says' banana, pear, bird etc. but really most things come out as 'bah' or 'pah'. He nods & shakes his head a lot when I ask him questions. So he understands a lot.