teeth floating

so this morning susan had the second ultrasound. she was told to drink plenty of fluids (and not pee) in preparation for this screening. after an inital brief examination, she was sent back to the waiting room to drink more water. apparently, this was a fairly common predicament, as there were three other women in the room awaiting their bladders to fill. after about half an hour, we go back in and get our second view of the future family member. by size, we find out that the due date is closer to march 4th now. (there had been some confusion as to when it's due. by last menstral period, we were supposed to be due valentine's day, which is incorrect now. so we're on our third due date) unfortunately, that means the baby is 16 weeks old and it's too early to determine the gender. looks like we're in for a big surprise...