11.5 weeks ultrasound, boy or girl guesses?!

This will be our 3rd baby, we already have 2 healthy girls, the waiting game is killing me for some reason with this one! Any clues or guesses on gender? I'm not positive if that is the "nub" or not or where the placenta or is? Thank you!
(sorry for the sideways upload, I'm not sure how to turn it!)

http://i67.tinypic.com/10zmtkm.jpg

Here is another picture (sucking it's thumb <3 )

http://i63.tinypic.com/30if1np.jpg

Too early for nub guesses, sorry. After 12 weeks is better.

It was worth a shot! Guess I'll just have to suck it up until I'm 20 weeks! :flowerz: Thank you!