12 week nub shot/skull theory guesses?

[Grateful2]

34125

Taken right at 12w0d

I'm not sure what I'm supposed to be looking at here? Any guesses/help??

[wonde]

guessing boy

[Claire33]

boy!

[Grateful2]

Looks like a third boy for me. Gonna admit I'm grossing my fingers you guys are wrong!

[pinkone2013]

Boy