It's hard not to worry but try to relax. I didn't gain a whole lot of weight until the end of the 3rd trimester. I blew up overnight. The second trimester was the best for me. I had energy and felt pretty good. I tried to eat alot of fruits because I had an extreme sweet tooth.
The last trimester was EXTREMELY challenging for me....EVERYTHING hurt. It hurt to walk. It hurt to lie down. It hurt to sit. And all the doctor kept saying is that this was typical when giving birth to multiples. The belly support band helped for about a month and then was useless. What was invaluable to me was the body pillow. I still have it til this day. By the end of the pregnancy, I couldn't sleep without.
Good luck! There is NO GREATER FEELING THAN BEING A MOM! :)
I was having mo/mo twins until our US at 17 weeks when they finally saw a membrane making them mo/di. I am 31.2 weeks along. So far just been having biweekly check ups with my OB until next week when it will become weekly. Also seeing my MFM biweekly for US since 17 weeks and now starting weekly US with a NST until the boys are born. We are hoping for 6 more weeks. Congratulations and don't look at Google.