Hello, I read your question carefully and i can understand your concern very well. I will try my best to solve your query. I would like to tell you that tegretol and lyrica are given to prevent seizure and for pain management respectively (in your case for TN). You need to consult a gynecologist if you are planning to get pregnant and discuss about these drugs. You should not stop these drugs without consulting gynec, because convulsion during pregnancy can severely affect the growth of baby. So don t get stressed much and consult a gynecologist before planning to get pregnant, discuss about it and act accordingly. Hope this will help and let me know if you have any further relevant queries.