Anyone use the Nun theory?

Question

My 3rd and last baby will be here at the end of May. 
This was my 12 weeks ultrasound. I have 2 boys 9 and 6 already so curious if I’m getting my third boy or 1st girl. 
Anyone use the nub theory and it be right?

Answer

It was right for my only girl. I can’t remember if it was right for my boys. This bean is saying girl too by nub, but I won’t know till tomorrow.

Answer

I sent my pic to 2 nub prediction companies and they both said girl! 
I am no expert. But to me yours looks maybe girl. How many days exactly is your pic? It can go from girl looking to boy between 12 and 13 weeks.

Answer

Daughter for reference

Answer

Nub theory was right with my first (girl) I’d say this looks to be a girl but I’m no pro

Anyone use the Nun theory?

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