Thanks everyone, and updateSO I had the ultrasound on Tuesday. My appt. was at 5pm, so at 4:30 I peed and then drank a bottle of water (20 oz)...they didn't actually call me back until 5:15 and she never mentioned a word about my bladder so I am guessing at this point it wasn't an issue. I wasn't in misery, so all went well. Thanks again mamas!!