Congratulations! I don't remember your earlier thread, but did you do anything to help keep the fluids up? I've heard that drinking one to two liters of water before the sonogram can show a good increase in fluids.
About two weeks ago I had an ultrasound to try to determine baby's gender (she was not cooperating that day) and they noticed I was low so he ordered me to force fluid as he called it. Seems it made a difference
Re: update:fluid