I believe we do things pretty differently here. Normally its once a month until 30 weeks - then its every 2 weeks until 36 weeks, then weekly after that until delivery.
I saw my OB at 5 1/2 weeks (earlier than I should have), 7 weeks, 11 weeks, 15 weeks, 19 weeks, and 22 weeks. I go back at 26 weeks, then probably again at 30. And then like I said above, I think after that its every 2 weeks until 36 weeks, and then its weekly until I deliver.
I also saw a specialist at 12 weeks, 16 weeks, 20 weeks (but this was optional for genetic tests, and then they found a placenta previa that had to be monitored...) I go back to him at 32 weeks for one last check...
SO yeah - we go a lot! I have also had 6 scans so far ...