i have just been told i have a 1 in 90 chance that my baby has nuchal translucency, with the blood test corresponding with the neck fold, my gynae has referred me to a fetal specialist that will cost me R 13 300.00 (scan and amnio) im not sure if i should do the amnio, but i mean everyone is telling me this is a false negetive result, im 23 years old, what r the chances ?