Ally, just thought I would add that I was talking about this to the CHN yesterday and she was saying that it's perfectly fine if babies aren't saying much at this age. She said that one of her bubs didn't have many words at 18 months but at 2 years was talking well. Apparently some babies don't talk much until after 2 even. The CHN said that at this age the main thing is that your baby can hear well and can understand simple things (which obviously your DS can if he's crawling away from you when you tell him it's nappy change time LOL!). She said that if you read regularly to your bub and explain day-to-day activities as you do them then that's about all you can do. Babies will talk when they're ready.