Thanks for the replies everyone. My Ds has his 2year check next month (we're a bit late, couldn't get in any sooner) and i'll talk to the nurse about my concerns then. I think i've been scared to admit that he's a bit slower to talk because i don't want him to be labelled and in my eyes he's perfect.. is that silly? I remember at his 18month check the nurse asked me if he was saying 5-6 words and i said yes because i didn't want him to be labelled as 'slow' or 'behind'. He was saying 5-6 words but they were quite unclear (as they still are) and i wasn't sure how clear the words had to be or if it was just 5 words in general, clear or unclear. I know now i should have mentioned it to the nurse but i guess being a first time mum i wanted my boy to be perfect (well he IS perfect of course ).
I guess my main concern is that he doesn't say words clearly.. its like he knows the first sound of the word and then the end just trails off or he puts in a completely different sound.. for example his 'word' for dog is 'deeeeo' and muffin is 'muuuu'.
I think i'd feel better if we are referred to have his hearing tested because although he seems to hear properly i'm starting to wonder if thats the problem.
Most things i've read say not to worry until they reach 2.. but he's 2 now and not talking much so that makes me worry even more!
I guess i'll just see what the nurse says and go from there.

Bjrose- i didn't know about the list of sounds, i will definitely ask the nurse about that.

One more thing, my DS never 'found the beat'. I remember when the other kids in my mum's group started dancing and bopping to music at around 1ish but my DS just never seemed interested. He likes High 5 but only the opening song, but even then he doesn't dance he just smiles at the TV. I know he can hear it because when it comes on the TV and he's in another room he comes running in to the lounge room to watch it.

Do you think not being interested in music is related to not talking?