I'm almost 33 weeks and haven't gained anything since 21 weeks. In the first trimester my morning sickness was so bad that I was actually losing weight. So technically I haven't gained any weight this pregnancy. I still have my morning sickness though, so I think that is why I haven't gained anything because I don't eat nearly as much as I did before I got pregnant. But doctor said as long as baby is healthy, then there's nothing to worry about! My baby is already almost 5 pounds so he must be getting what he needs lol