I'm 30 weeks pregnant at the start I was 252lbs then 248,242,246,248 and now 250. I don't get any ultrasounds beside the 20week one an everything was normal. I've been seeing other women saying they have to get an extra ultrasound because they are not gaining weight and could link to low amniotic fluid and now I'm starting to question if I need to bring this up to my doctor next week. This is our 3rd pregnacy and I've always gained at least 20lbs by the very end and this time I'm not. Not sure if it's the same for overweight moms but still wouldn't want that to over rule my child's health because they don't want me to get any fatter.