According to my friend, she indicated that they typically do up to three ultrascans during your pregnancy, however when they do it changes by your provider. This is my first and I had my first ultrasound at 7 weeks, to confirm the pregnancy, and my second ultrasound is coming up next week at 10 weeks. Congrats On your pregancy!
Usually there is a ultrascan done at 12 weeks, sometimes the dr may request an earlier scan to confirm dates, then if the pregnancy is going ok, next one is at 20wks - will thats how they do it here in NZ