I am 36 weeks and i have had trouble keeping weight on. i will gain it and lose it. i have gained a total of 11 lbs. My doctor isn't concerned I've been measuring dead on. What concerns me is this is my fourth pregnancy and my first i gained 80 lbs which is a lot. My second I gained 35 lbs and my third i gained 27 lbs. I also know four other people pregnant and one is 14 weeks one is 24 one is 28 and the other is 16 weeks and they are all bigger than me. I literally look about 6 months at most not almost due.