Gender?

Ashley • 29 years old. Wife to Brock. Mommy to Charlotte Jayne, Quinn Adalynn, Wyatt Thomas and Rhett Eugene.
So went for a second anatomy scan today (because we could not get half the measurements they needed 2 weeks ago).  I had the Harmony test done at 10 weeks and it came back girl.  My sono two weeks ago confirmed girl (picture attached).   I go today and the tech was horrible.  It took her well over an hour to get a few measurements.  And she goes "Well, he's measuring really big!"    I go "excuse me, he?!?!?"   She swears it's a boy.  But from what I say, it just looked like the cord between the legs.    She then said she'd try and do an internal to see.   She saw nothing.  Baby was sideways and folded up and being super stubborn.   She had the doctor look over my scan and he said he wants me to come back next week to check again.  So for now we wait and are unsure.  My gut says girl.  I'd be happy either way.  We currently have 2 girls and a boy.     
Do you know anyone that ever had the Harmony test and it come back wrong?!    I'm gonna be super unhappy if I paid for the test and it's wrong!!   They say it's 99.9% accurate.