A.,
I did the CVS test two years ago at 13 weeks pregnant, at the first reproductive genetics place in Chicago, with Dr. Norman Ginsberg. I can't recall the name of the place, but it was on Clark or Halsted in the Lincoln Park area. Looking back, I wish I had not done it. Not only was it oddly painful, (I had twins, so they had to go through my abdomen three times to get a sample, as the first time, one of the boys was kicking too much and they needed to get the needle out of the way), but for the rest of the pregnancy I had could still feel pains radiating from the needle puncture site and strange bladder pains. I subsequently went into early labor at 22 weeks, which they term as "late-term miscarriage". Both the babies were born alive at 22 weeks, and were genetically healthy, but could not survive. I can't blame the CVS test entirely because I had some other complications with my body, but looking back, it certainly could have played a role in my outcome.
Also, I think you have to decide if you would terminate a pregnancy if you knew something were wrong. For us, the nuchal translucency was thick on both boys and while we would not have terminated the pregnancy, we wanted to be prepared for the worst in case we were going to have two challenging situations. Luckily, they were perfect — even in their short life. If your nuchal ultrasound looks good, have faith that things will work out fine.
That said, I'm not an older mom. I'm 32, but have had 6 miscarriages, (including the early birth and death of my twin boys). And I just went through my 1st round of I.V.F. after 5 rounds of IUI. Waiting on those results... I think that qualifies me in some way, right?!! (Amusement is absolutely necessary during these times!)
Good luck with your decision process.
Shine on!
L.