We had our first appt with the high risk OB office today & I loved them! Had another u/s & the baby's heartbeats are 150 & 152. Our appt with the NP was an hour so she took down my ENTIRE history, and then we got to ask her 20 questions...forgot to ask about sex. WOOPSY! She was wonderful. Seriously wonderful. I go back in 4 weeks for my 12 week u/s + a prenatal appt. After that I will have u/s's every 2 weeks to check my cervix for signs of preterm labor. I guess this is common during the teen weeks of twin pregnancies. After that, it tapers off. Really happy that they are attentive & care, & they actually treat me like this is a high risk situation.
The part I'm having the hardest time with is the weight gain. I don't know how to do it right. I've spent the last 3 years counting calories & not overdoing it. I'm supposed to be at 24lbs by 24 weeks. I don't know where to start because I also don't want to get GD - which, of course, my doomsday mother keeps telling me I'm going to get since it's twins. 
"To be pregnant is to be vitally alive, thoroughly woman, and undoubtedly inhabited" - Anne Buchanan
Re: High Risk OB appt
I'm curious to find out if other MoMs had cervical checks every 2 weeks starting that early. I didn't even have one until 24 or 26 weeks. Are you a FTM?
Like PP said, your body will do what it needs to do for your babies. Stop calorie counting and just eat (if you're lucky enough to not have nightmare morning sickness like a lot of us had!) nutritious meals, hit all the food groups and you'll be fine! I didn't gain a lb until 16 weeks bc I was so sick but you better believe I hit that 24 by 24, and now I'm at +38lbs!
Also just throwing in too, that I don't have GD because I'm having twins
Congratulations and I am glad you had such a good experience with your doctor!
I am a little jealous you will be going back in 4 weeks and then every two!! I think that peace of mind would help me. My appointments have been about every 5 weeks and that's been it! I had my cervical length checked once at 17 weeks and that was my last appointment. I do believe it was 3.3 if I remember correctly!
I was super sick in the beginning and lost almost 20 pounds! Just last week at 20 weeks I finally regained that weight back and put a little bit on so I am out of the negatives now!
As far as GD, I haven't been checked yet but it is something my mom had and we have a family history of diabetes.
Check out my blog: http://blondheimtwins.blogspot.com/
I had only gained 30 lbs when I delivered at 34+4weeks. Also, I passed my 1hr glucose test so no GD's here.