Aww I totally understand the anticipation, especially when you're hoping for a girl after two boys! It's quite common for babies to be shy at scans, some just love to hide their bits, and positioning really does make a difference, so don't worry lah, you're definitely not alone. Many of us have gone through multiple scans before finally getting a clear picture, so there's still plenty of time at 28 weeks for baby to cooperate next time around. Fingers crossed for your girl, but honestly either way you'll be blessed, I'm sure your two boys are excited to meet their little sibling already!