Gender guesses?? Help is appreciated!

[musicmom28]

20068Hi! This will be my first baby and I am SO excited to find out what we're having! It's so much fun doing these gender predictions and we'll be happy with either gender, but I'm trying to figure out what everyone is calling the "nub theory"...I'm not sure what I'm looking for, so any help is appreciated!!

[txmomof3beautifulboys]

looks
girly

[Petal]

Thinking pink!!

[coocoobananas]

How many weeks were you? Does look girly:)

[musicmom28]

This ultrasound was at 12w4d :)

[Abifasc]

Girl

[coocoobananas]

You're probably good for a girl then;)

[daisymoo]

I'd guess girl


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[lovemy4]

girl nub