Skull/nub theory at 15 weeks?

[Nowayorhighway]

I had a scan at 15+3 and I think the skull and nub are pointing towards a boy but I’m not 100%. Any thoughts?

I'm no expert but I'm on a few fb groups and apparently this theory only works up till 14 weeks, after that you'd need a potty shot

My guess would’ve been girl based on the skull theory... but then I was convinced mine was a girl and he turned out to be a boy!

I had no idea it had to be before 15 weeks! No potty shot so guess I’ll have to keep guessing .

Boy!! 👶🏽❤️ and congratulations xx