Gender guesses please??? Boy or girl?

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Hi ladies!
This is my 13+1 week scan. I have no idea about the gender! Anyone versed in nub/skull theories, or just want to guess?

By the way- apologies- I posted this in first tri, but got no responses so far. I thought I might have better luck here!

 

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one more pic...

 

[Dream.dream]

Hmm I think it looks like a girl to me

 

[jenniferttc1]

I think boy!

 

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Thanks ladies Would love more guesses!

Btw, Jennifer, I think I remember you on here from when I was pregnant with DD. She is 16 months now. I see your LO is close to the same age. Best wishes with this pregnancy!