Nub theory. Gender guess?

I had my ultrasound done at 12 weeks and need help determining boy or girl. It's driving me crazy!

http://img.tapatalk.com/d/14/08/04/8ejuvupu.jpg

I'm not sure you have a good nub shot for guessing on....maybe someone else will chime in :)

guessing girl

Thanks! Really hoping girl. We have a combined family of 4 boys and a girl.

No nub!! Sorry :(

Nub is cut off!

Is this any better? Sadly it got ripped.

http://img.tapatalk.com/d/14/08/05/yqe7e9er.jpg