LaurelinLove:i had my 1st u/s at 8 weeks exactly, they wouldn't let me in earlier than that but i also got to hear the heartbeat!!
My OB office does the first U/S at 8 weeks. They don't do the next U/S until the 20 week anatomy scan. I am 41 and considered "high risk" so I did a NT scan at 13 weeks and will do my anatomy scan with a perinatal doctor at 20 weeks.
At West Coast, they saw me for the first time at 8weeks and did the dating us then. But for my first child, they made me wait until 10 weeks to be seen...not sure if they have changed when they will first see you or waht.