Caro you would have been given the quick results because you had a 1:85 chance of having a baby with DS.

I think if you went to a private OB you would have to pay the extra to get the results back.

One thing i will say it doesn't matter how old you are you can still be at risk from having a DS baby.
A friend of mine was only 25 when she gave birth to twin girls both born with DS and DS did not run in the family. She never even thought about testing because of her age at the time.

It's a very personal choice to have the 12wks scan and even to have any follow up tests if you do have it done and the results are high risk.
For me to have the amnio done it was for peace of mind, to know what we would be facing at the end of the day.

I think it's something that until you are faced with it you can not make up your mind. I always said i wouldn't have further testing until that day they told me we had a 1:294 chance this baby could have DS. It's a tough thing to have to go through and not a easy thing to do.