No, it's not what you're probably thinking. Actually, I wanted to warn all of you who are going to get this done that you shouldn't try to drive 15 miles on a full bladder. LOL, it's been more than 3 years since my ultrasound, but I still get shivers thinking about the 32 oz of water I had to drink before the ultrasound (or try to, in my case). I ended up having to pull into a fast food joint along the way, not once, but twice.