I'm so sorry for your loss, I can't imagine going through what you went through.
I don't know much about anything but I'm not sure what steps you could of taken to minimize your risk of a downs baby.
As far as I know it all comes down to egg quality. And you don't really have control over that. You might want to go over to the preg 35+ board as those ladies (myself included) are 35 or older and ttc or pregnant and maybe are a bit more knowledgeable about statistics etc...
My name is ritu. I am 30 now. my first baby expire in 8th month in stometch and Next baby boy died after 3 month (sudden death) in pregnancy Now at this time I have no baby.
at present I ignore pregency one year and 3 month. after second baby death then Dr. suggest Torch Test. When I done. then rubella igg 45% and cmv igg 15%. After Test take vaccine for Rubella. and today 15-07-2010 now Repect Tourch Test I get Rubella igg 4% its Normal but CMV IGG 12% . NOW AT TIME TIME WHAT CAN I DO. PLEASE SUGGEST SOME MEDICIANE.