Debi,
When deciding whether one should or should not take medications during pregnancy a risk benefit analysis needs to be done. Each medication has its on risks and the known efficious mood-stabilizers all have significant risks. Tegretol and Depakote have been associated with neural tube defects such as Spina bifida. Lithium has been associated with a cardiac anomaly known as Ebsteins' anomaly. Lamictal and Neurontin which are also thought to have some mood stabilizing properties have not been studied in pregnancy. The calcium channel blockers were thought at one time to have a potential to be helpful as mood stabilizers but really have not panned out and are generally not used at this time. The course of your Bipolar disorder may also dictate whether or not you could be off of medications for a short time especially during the first trimester when the majority of the fetus' organs are developing. You also need to know the risk of transmittng bipolar disorder to your child. These are just some of the questions that should be addressed prior to getting pregnant. Please discuss this issue in depth with your treating psychiatrist. By the way, the longer a medication is out , the more information about its safety in pregnancy we have.
Sincerely,
HFHS MD-JM