I am 11wks today,and i have only gained 1-2 pound maybe. Its not that i am not eating. I am eating as usuall,just adding some extra fruits and some extra fluids,the rest its pretty same as before i was pregnant.(just taking more care of what i am eating). I am 5'8.5 and 127.8 pounds. I used to be skinny always (its my metabolism i guess cuz i always eat a lot and healthy). Should i need to gain weight for my babies to be safe? Even if i not gain to much weight are my babies fine? I am sorry for this questions. I am first time mom so my concerns are all over the place,especialy with twins.