amniocentesis

anyone out there had one done? I'm going to have to get one because my nuchal translucency came back abnormal. 3.4 mm of fluid. they didnt draw my blood for some reason. I have gestational diabetes too so I probably should get it done. my genetic appointment isn't for another 9 days. I feel like I cant even enjoy this pregnancy because even the high risk doctor said she is surprised I didnt break down when she told me the news. idk any words would be great. either way