I had fully convinced myself there was a boy in there, but I guess she's just already bucking conventional gender norms. I like that in a fetus.
I think ultrasounds are a little like those magic eye pictures from the 90s- you have to kind of stare at them for awhile before the picture pops out at you. This is the picture we got that makes the most sense- she's playing peek a boo, or expressing irritation at being prodded by sounds waves. The head's to right for anyone still confused.