harmony test question? 🤔

Briana
I had the harmony test done at 10 weeks exactly and week later got the results finding out it was a girl, well my question is has anyone ever had the harmony test done and the results was wrong? I have heard a few have been wrong either they didn't get enough blood, tested to early & etc. I go Wednesday for my 15 week appointment to confirm the gender just worried a bit. Thanks ☺