Some questions...and what is a nub shot?

[hillarylmt]

So I"m very new to this site, but I had an ultrasound today at 12 weeks 4 days. We got some great pictures, and were told the baby looks healthy and perfect, but she said she had no guess on gender. I am curious what pictures I should post to ask for predictions?
What is a nub shot?

Thanks, sorry for the newbie questions!

 

[WantaBelly]

I saw your picture and it's a boy!!