Ramzi Theory with transvaginal u/s?

Jessica
I have heard a lot about the Ramzi Theory for figuring out if you're having a boy or girl early on. I know it says if the embryo is on the left, it's a boy, and on the right is a girl. But are the pictures mirrored in a transvaginal ultrasound? 
This is my 6 week ultrasound, let me know what you guys think!!! (I am hoping for a girl, but my husband wants a boy lol)