I actually lost weight in the first trimester. I lost just over a stone because I was so ill ( I could stand to lose it though - I was a size 16 - 18) So everyone thought I had been dieting - not growing a baby!Same with me but I was a size 12 and I lost just under a stone. Morning sickness was awful. I'm now 17 weeks and i've gained a pound. When i'm laying down I can clearly see a bump but when i'm standing up I just look a bit podgy!! Can't wait until I have a proper bump!