Boy or Girl? Nub theory

[Willowtree2014]

Can anyone guess the gender of this scan?
Any Nub Theory or Skull Theory experts??
13 weeks

That's really not clear to me for either nub or skull tbh, at a guess I'd say boy

It's not the clearest nub pic but I guess girl and looks parallel to the spine

I also think girl but nub isn't the clearest so wouldn't like to say for certain!