hi just my two cents..... i had a friend that was overweight when she got pregnant. she didnt gain a single pound during the pregnancy but she ate healthy always. she was very careful with her amounts of eating and had a healthy pregnancy and baby. the drs were mad at her but she said she just listened to her body and ATE HEALTHY -- can't fault her for that!
if you are overweight, the weight the drs want you to gain for your pregnancy is less than if you are at a healthy weight to start (~26 pounds if you are not overweight but ~15 is ok if you are overweight.)