I didn't think we'd be able to tell this soon, but apparently we could! :)
Here's my favorite sonogram picture:
You can see her little foot kicked up in the top left corner! I hope my ribs can handle it when she weighs 5 or 6 more pounds.
I'm 16 weeks right now, about to start my 17th. Everything looks great! Cervix is measuring a very good length, which is re-assuring. I'll keep going in every 2 week for sonograms to keep check. This baby is going to be sick of having her picture taken before she even comes out :)