so I haven't gained any weight for 5 weeks I'm 18 weeks pregnant and my Dr is concerned about it. I did gain 13 pounds the first 3 months so maybe that's whyI just haven't gained any recently. I know my sister went through the thing. I eat often and have been drinking more waterbut my doctor didn't say much about itbesides she was worried and we needed to set the next appointment for an earlier week? has this happened to anyone else? I'm sure it has but I just want other peoples opinions too