I had a 3d ultrasound the other day - coolest thing ever! - and was quite happy to see that the baby is in fact a girl just as predicted during my first ultrasound many weeks ago. The technician gladly showed me the proof on screen by running his mouse up and down the line of the babies labia. “see that line right there? that looks like lips? that’s her labia”
Yup - she’s a girl.