Ever since I had my first son my weight has been stubborn! I used to be able to just watch what I ate for a week or so, exercise more, and then I'd see fast results on the scale. Now it takes FOREVER...if I even see any results at all. I gave up trying to lose weight! More because it was too much for me emotionally. I really would like to lose weight, though, like you, to be at a healthy weight before I get pregnant again. Sorry I can't be more encouraging!