questions for dr @9 week appt?

Ke
We are headed to our 9 week appointment tomorrow, after finding out about our didi twins 2 weeks ago. I'm still a bit in shock by this (amazing and wonderful and also nerve wracking) news, and I know nothing about what to expect with a twin pregnancy. I am putting together some questions to ask so I leave with as much knowledge as I can, and figured that this community would be a great resource to tap for some ideas, since I know so little. 
So, what would you ask your doctor? What are my concerns right now? 
Thanks!