I wanted to wish you well in making such a hard decision. I haven't had amnio but I have had 2 CVS procedures. Tashy is right - find yourself an experienced dr and your risk will lower significantly.

Another thing to think about is what you will do with the information should it show something other than normal in the results. If you would likely carry-on with your pregnancy than maybe your odds and your personal choice outweigh any risk there may be in having the procedure.

It is uncomfortable but by no means unbearable. Take someone with you and just breathe. Make sure you rest afterwards.