Women, fat burners, and birth???

[droptop]

Can women take fat burners (hydroxycut, xenedrine) while trying to have kids, or is this a bad idea? I don't mean while pregnant already, just trying to have kids. How about lyden factor 5?, which has something to do with blood not being able to clot very well. She also had her thyroid checked, and its the bad kind that will make you gain weight. She's not fat at all (maybe weighs 105 or so), but she's starting to notice some weight gain. Before I have her try fat burners, I'm going to try to get her diet in order and a good workout schedule. I would just like to find some info for the future if we decide to go that rout. I have tried hydroxycut in the past and did pretty good with it, but I'm not sure how it will work with women that are trying to have kids. Thanks for your advice.