Nub theory - girl or boy?

Shara • Australia • 💕 Mother to Archer (June 2018) + Oscar (December 2019) + Charlie (July 2021) 💙💙💙

So the ultrasound tech said to go off this photo for the nub theory. What does everyone think? Didn’t know about the nub theory when I was pregnant with my son and am curious to see what people think 😊

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