nub experts help me find nub? please

[Angel17]

Had my 12 week scan yesterday and baby measuring 12 weeks and 6 days. I have only this has a clear pic. CCertainly not as clear as my last baby. Help please

 

[calliebaby]

I don' think the nub was captured.

 

[Angel17]

This pic any better? I am clutching at straws here. Skull theory?

 

[winterbabies3]

Not sure is I see nub but want to guess boy.

 

[madseasons]

Not seeing may clues here, but my "guess" is a

 

[Bevziibubble]