I weighed 137 and was 16% body fat...by the end of my first pregnancy..I weighed 177.gained 40 pounds. After that my body settled at 155 comforabl....then at the end I weighed 195..another 40 pounds. My body settled at 160 for almost 3 years.
My doctors never said anything about my weight gain...now my husband... was amazed when he saw the scales hit 195 ..... LOL...He didn't even think I was close to 200.
I think in some ways our body gains/loses what it needs too.