dont worry, it seems to be a common thing. i was unfortunatly underweight before i got prego and have only put on 15-18 lbs, bringing me to a whole 117....but my midwife is very happy with my progress, you dont have to gain a ton and if you are at a healthy weight and eating good you and the baby will be okay. it could be that you are just balancing out now, but you will gain more soon. i'm due march 5th and my belly has started to pop out the last couple of weeks. do you know what you're having? mines a boy!