The Gender Experts 20 week skull theory

[Astro562]

My husband and I agreed not to find out the sex at 20week scan. During the scan I felt so strongly that it was a girl. I’m secretly hoping for a girl. Curiosity got the better of me and I sent the scan to the gender experts who came back saying it’s a boy based on the skull theory. Has anyone experienced them giving the wrong prediction?

I’ve read skull theory has almost zero evidence to back it up given sex based changes in skull shape don’t occur until puberty! I’d ignore it. I think nub theory has more scientific backing but skull theory alone I’d ignore.