Keep in mind that rapid weight loss can cause fertility problems such as a reduction in progesterone, a slow down in follicle growth, and ovulatory dysfunction. It is certainly more important to have a balanced diet then to be the perfect weight.
You can try to do both together if you do it sensibly. Eating an adequate diet in necessary regardless of what supplements you are taking. The goal should be to lose weight slowly and intelligently using an eating plan that would be good for pregnancy, and actually for the rest of your life! If it isn't a life-plan change, it won't work. Be sure to get plenty of folic acid and calcium. One should start taking pre-natal vitamins, or the equivalent, at least 3 months before trying to get pregnant.
No. Diet drugs have not been fully tested in pregnancy, for one thing, but more importantly such dieting can lead to poor nutrition. You want a healthy baby, so it is best to keep your system as drug free as possible. Some literature suggests one should try to be drug free -- including over the counter medications, for 3 months prior to seeking pregnancy. See medical journal abstracts.
Stop taking the diet drugs as soon as you know you are pregnant. Tell your physician you were on the drugs so that s/he is aware. Chances are your baby will be fine. You need to start eating a balanced diet as soon as you learn you are expecting.
It may not take that much weight loss to get your cycle back. There are studies showing improved cycling with the loss of 12-20 pounds, while other information says losing 20 percent of your body weight may help if you are 100 percent or more over your "ideal" weight (i.e., if you weigh 300 pounds, lose 60 pounds and your cycles may return to normal).
It's best not to go more than 3 cycles without having a period, definitely no longer than six months. You should see your physician to have your period induced, usually with a drug called Provera, or sometimes Megace.
Copyright © by Rebecca Smith Waddell, FertilityPlus.org. Permission to publish granted to Pregnancy.org, LLC.