my ultrasound technician told me that you shouldnt go in on an empty stomach. make sure you eat something before you go cuz one it makes the baby more active and if your tummy is rumbling cuz your hungry it can cause the pics to be blurry at times. cute bump though!
My guess is girl, and if you think it is a girl then it probably is. Mothers intuition is a powerful thing! Good Luck, hope the baby cooperates and doesn't hide the "junk".