Ramzi method fail!

Naomi
Hi all - according to the Ramzi method our little one is a girl. We got Harmony test results back and it's a boy. Fail.
1.  Ladies, if you don't know the sex of the baby yet, don't rely on the Ramzi method.
2.  Has the Ramzi method worked for anyone?
Here's my 8(ish) week scan. I'm 13 + 2 with a little BOY.