Help guessing the gender of my baby!

I would love it if you guys could help me predict the gender of the little one in my belly. ;)
It's from an ultrasound in week 13. Heart rate 164.
Is it the nub that looks like a wrench?

Attachment 28777Attachment 28777Attachment 28779

I'd guess boy

I'm not sure about this one. It looks slightly boyish, but for 13 weeks and an arched back, it could be girl. I'll give a slight girly lean.

Yeah, I'm honestly not very sure of my boy guess at all but that's what I was leaning at first glance. Tough one.

Agreeing aswell, tricky!:) The boyish nub bit just looks too far up the body, cord maybe?? Leaning girl also:)

Leaning girl

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How interesting! :)
Thank you for your thoughts!
Please feel free to keep on guessing!

I think boy. Looks a bit short and thick for a girl but could maybe be cord.

I am a bit confused about which part actually is the nub. As Babygirlquest says, it looks a bit thick to be the nub, maybe it's the cord? I zoomed in the two pictures and marked the nub/cord with a 1, and if you campare the two pictures, it really looks more like the cord. So maybe it's the nub marked with a '?' ?Attachment 28812

the nub is at the 1 :)

Girl?

Boy