Nub theory!?

Question

Does anybody use the nub theory to find if it’s a boy or girl? 
Here is is explained:

Here is my scan picture: which would suggest a girl!?

Answer

What do you think?

Answer

Any idea on the nub of my little one? Hopefully find out in 11 days...!

Answer

Yeah, yours looks girly. I was convinced I was having a boy until I saw her nub. I knew right away.

Let's Glow!