Hi Leemar,
My bloods combined with my 12 week scan came back with a 1:19 of Downs. We had a bad experience with the guy who did our early scans, so when we went to have the CVS done at the hospital and the lady asked us why we were there, we assumed that the measurement changed, but she said, your here might as well get it done. In saying that our baby decided to stay still and we were able to get the proceedure done, all with good results in the end.
I know how much of a testing time this is and I remember how emotionally unstable I was. So good luck with it and I wish you a positive result.
Melissa