I had the scan and bloodtest done. I was 22 when I had it done and my result ended up being something like 1:21,000. I dont think I would have terminated my pregnancy if the risk was high or positive, but it was something that I'd have like to have known about so that I could prepare myself for a special needs child and maybe even get involved in a support group or something early. I also just wanted to have a sticky beak at my baby too!