aww, sorry MT try not to be too nervous.
Maybe she was hiding
From another thread:
They have studies which show that babies move away from it when later on in the pregnancy
I must admit that I was a bit shocked when my OB explained that what the baby experiences in an u/s is like being in an underwater explosion - those cute waves are really messages to 'bugger off and leave me alone'. Having said that, I've had 4 u/s due to various risks but encouraged the sonographer to leave it at the last one when DS started hiding behind the placenta when she was trying to get a 4D face shot for us.