Can you see the nub?? 13 weeks scan, any guess's?

Hi all, new to the nub theory. But looks pretty interesting...any guess's?? Attachment 19948

Have I done this right? :think:

I am not sure the nub is fully captured in this picture. I cannot make a guess from this one picture.

Aww this is the only pic I have :( thanks all the same.

No nub :(