Skull and nub theory experts, please take a look ;)

[Erindickie]

Here is my 12 week scan I am unsure if I can see a nub and have no clue about the skull theory only read about it. Very interested to here people's opinions.
Thanks heaps x

[beachbubs]

If that's the nub I see, I would say boy :)

[Erindickie]

Bump anymore guess's please

[Funkyfry]

I think boy too

[tmbabcock]

The spine is a bit curved but I say boy.