If you do have some medical problems such as diabetes, hypertension, clotting disorders, or others, consult with your doctor about getting them under the best control that you can prior to getting off birth control. If you are not using birth control, talk to your OB/GYN about your options. Some medications are teratogenic (cause birth defects) and can be changed once you are actively trying to get pregnant. Your doctor needs to know about your plans. If you are overweight, losing even a small amount of weight, eating healthy, and exercising can help you have a healthier pregnancy and lower your risk of complications. Basically, you want to do what you can to maximize your health prior to taking on the responsibility of pregnancy and having a baby. If you have had prior pregnancy problems talk to your OB/GYN prior to trying to get pregnant.