Yup, it was pretty clear. Baby was in a very good position to tell, and it was a Level 2 u/s at a maternal-fetal medicine clinic (i.e., highly skilled sonographer and state-of-the-art equipment). She looked at baby right-side-up, upside-down, sideways, and all around and said she was absolutely sure there was no penis in sight. We did see the "2 little lines" -- but they looked more like 2 little spots to us.
I'm inclined to trust this result b/c it meshes w/ the VERY strong girl vibe I've been getting all thru the pregnancy. Mama's intuition, you know!