Scan at 12+4 weeks - Gender guesses based on nub and skull theories?

[YayBaby678]

Below are my 12+4 week scan shots, I'm hoping for some gender guesses. Is the nub even visible? I've looked at tons of pics online and can't seem to make out the nub in my pic. I'm kind of thinking boy, this bub looks so much like my DS around the same time (in regards to skull shape, although this baby has a flatter face). I've attached pics of DS as well.

Let me know your thoughts!


Here is current baby:
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And here is DS 1:
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[maidentomother]

No nub. :(

[YayBaby678]

No nub. :(

Crud. I wish she would have taken a few more images. Any thoughts based on the skull theory or is that not reliable?

[Babygirlquest]

I do to see a clear nub but a hint of something there which makes me guess girl as seems flat.

[YayBaby678]

I do to see a clear nub but a hint of something there which makes me guess girl as seems flat.

I will be over the moon if you are right!

[granddaughter]

Girl lean

[YayBaby678]

Girl lean

I hope you're right!