I'm 20 weeks today and I only weigh 114 lbs. Before I found out I was pregnant I weighed about the same thing 110-112 lbs. When I went to apply for WIC the nutritionist told me that I was high risk because I'm not gaining weight. My boyfriend told me not to let her scare me because some people stay small the entire 9 months but I just want our baby to be healthy. I have a high metabolism so is that why I haven't been gaining?