Nub theory？ but I can't see the nub!

[xunbai]

Hi all,
Here is my first scan 12 weeks. I've heard of this nub theory, but I can't seem to make out the nub! Anyone help me?
Thank you.

The nub isn’t always visible on scan photos. I’m going to say girl though...

I don’t think the nub is visible there. It’s pretty common for it not to image in all photos.

I’m always inclined to say girl when there isn’t an obvious nub, but it can just mean that it wasn’t imaged, or it’s hiding.

Thats a great nub shot!! And a very girly one :)