I too had a high risk result from my 12 week scan 1:3 my babies neck measurement was 3.4mm. When the blood work came back the combined result improved quite a bit but not enough to rule out amnio..that ruled out a chromosomal abnormaily,. but we have since found out she has a very damaged kidney, (which may or may not be part of a syndrome, so far nothing has been found)I think it is a good idea to prepare for the what ifs, no matter what you intend to do, thanks for sharing your story it has certainly been a rollercoaster ride...mine has 10 weeks to go before we get the full answers but again I would'nt change anything, I look forward to meeting my beautiful baby girl.