Only 9 weeks finding out sex of baby.

Brittny
So I had my 9 week check up. Told me next was the blood work for down syndrome and everything else. Which we agreed to take no matter what the results. This is my second child did it with my first so I knew it be okay. But only difference is this time around I'm getting to find out the sex of the baby too. Guess it's something new. They separate my blood from the baby's and are able to tell me the sex. Anyone else go thru this new procedure at 10 weeks. I'm just curious to how a my accurate this could be.