Unfortunately, Lithium has been linked to birth defects and is not recommended. However, Lamictal is a mood stabilizer that is considered much safer for pregnancy. There has been a lot of research on Lamictal because it is also used for seizures.
They also suggest that you try to take only one med and not a cocktail.
Did your doc give you suggestions for any options? My pdoc and OB sort of deferred to each other, so I had to do some of my own research. All three of us were satisfied with the choice of lamictal and now I have my happy, healthy baby.
Best,
EJ