PrescriptionVS.pregnancy

Patient: Hello! My name is Kasha, and I have Bi-polar disorder and I am on Lamotrigene as a mood stabilizer. It is very effective, and has worked wonders for me. But on the bottle it says that I should not take during a pregnancy. I am not pregnant, but am considering starting to try for a baby. My question is…how long should I be off my prescription before I start trying for a baby? Also I have PCOS, and was curious as to what vitamins or hormone pills I could take to make myself more fertile??

Doctor: