Sneak Peek DNA Gender Test

We're finally expecting Baby #2 and I just wanted to know if anyone had this test done at an actual facility where they draw blood? We had it done at a 3D ultrasound place we went to with our son and they drew the blood and everything, but I'm so nervous it's wrong. Most of the wrong results I've been seeing come from their at home kits so that's why we went somewhere that offered it where they actually draw blood. We both instantly felt we were having a girl especially because I have all day nausea and other things that point to a girl and I was right with our son being a boy. It says we are having a girl this time around, but then one of the nurses I just saw said it could have detected my DNA so now I'm even more worried it's wrong and don't want to announce gender, but the whole reason we went was so that we wouldn't have to wait😂😂. I told my husband we should have waited until 15 weeks and just did the ultrasound there because the tech has never been wrong, but he was too impatient🙄