nub theory, please tell me what you think.

[rose4me2]

19517
boy or girl?

[kaseybaby]

Once looks boy one looks girl so I am 50/50

[Abifasc]

Girl

[coocoobananas]

Boy

[granddaughter]

blue

[lala22]

The first one looks like a girl nub- the second doesn't look like a nub at all so my guess is girl.

[tinny]

any other ideas?
I'm thinking:DD: because during the sonogram the nub kind went down all the time. But then, when I saw the pictures, photo N° made me doubt again. In a 12 weeks scan I could clearly see that my boys were boys. NUB looking to the sky with a little rounded end. Please tell me what you think.
Thank you

[Laurie1161]

Girl I don't think bottom pic is a nub

[lovemy4]

Girl nub. It's angled downwards.