Okay, so I know that when you're in your first trimester, you're not going to be gaining alot of weight, typically. I am 13 weeks pregnant, first child, tiny frame, etc. and I haven't gained any weight at all. The thing is Im constantly starving. Im always eating, and I eat a ton. I just don't gain any weight, and even after eating I feel as if I haven't eaten anything!! It's insane. I just wonder, am I always so hungry because the baby is starving? Or is it just metabolism? And also, when will I start gaining weight? I just pray that the baby is okay, the doctor said that as long as im eating healthy, everything should be great. The heart beat was very strong, so we're not worried, but then again, I'm a first time parent, so there's always those fears! Please give me advice!!