Nuchal translucency test

Reece
I did not do this when I was pregnant with my son, my dr said that it was kind of nonsense because of the high false positives rate. I have been given the option to do it this time and I am so conflicted about whether or not to do it. I already worry enough with pregnancies, I don't want the possibility of more stress added to me. Either way, I will love this child no matter what. 
Anyone else doing this or not doing this?