Get to see my baby tomorrow 💕BUT..

Kr
Tomorrow I will be 12w5d and I am getting (I think) Nuchal Translucency test done for down sydrome. (Just an ultrasound and bloodwork, so I hope I have the right test name) what can I expect when they do this? Have any of you ever had false results and have any of you found out the gender? Please don't bash me saying you can't find out gender this early by ultrasound because I know a few woman who have, just not sure if you can with this particular test. Thanks!Â