I'm 37, 16 weeks pregnant for the first time. My partner is 27 and we had the NT scan, which came back normal at 1.3, but then had the bloods taken and well that came back with 1 in 26 chance for Down Syndrome. After many tears and toing and froing about what we would do if we knew for sure, we decided as parents to our little one that we weren't having any more invasive tests because we will keep this little one no matter what happens.
I totally wish I didn't have the blood test in the first place, and I certainly won't have any tests whatsoever next time round, but I did and of course it freaked me out more than anything. My partner just told me to focus on the way we both felt when we had our 12 week scan and the way the baby touched its face with both its hands during the ultrasound (in Home Alone style lol), and that we have two hands, five fingers, two legs and a beautiful button nose and there is no way we will ever be able to give up on this little one.
So I guess what I am saying is that if you don't want the test, any of it, then don't have it. It is your body, and your baby and your choice. If your consultant doesn't like it, he or she is not the right consultant. It is all about what you feel is best for you and your baby. Good luck with it.