Scan sex guesses

[ReturnofSaturn]

Hi I have heard of a nub theory on Mumsnet before?
This is my scan at 13 weeks, anyone like to hazard a guess for fun?

I think boy

Congratulations on your pregnancy :)

Huge congrats I think boy too beautiful a can not so clear x

I've had a feeling it's a boy from the beginning every dream I've had it's been a boy!