Blood test that shows gender at 12 weeks

Brittany
Has anyone heard of the blood test that shows the gender of the baby?? It's new. One of my coworkers had it done. She said it was done along with downsendrome testing. Wondering if anyone else has had it and at how far along?? 
It would be so nice to not have to wait until week 16-20 for an ultrasound to show gender!!