My ds is 15 months old and doesn't say anything very recognisable. (apart from Mumum) - the thing is at around 14 months, he said a couple of words really well; he once said "milchh" really clearly as I handed him his beaker of milk. He also said "table" once as he put something on the table. But he has never repeated those words and all he does now is babble. I have read that he should have around 6 words by now. Can anyone offer any advice? Should I be worried? He does seem to understand a fair bit btw.