what is the nub theory?

Question

And can you tell me what mine would be based off of it? This was taken at almost 13 weeks

Answer

I'm going to say girl based off nub theory

Answer

The nub theory is the angle of the private area. The bone has to be less than 30 degrees to be a girl.

According to the skull theory, I would say boy.

Answer

Also, I could post a closer up pic of just the full body side if needed

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