I think that they have other meds to treat this that are safer, I would just ask your fertility Dr. best of luck to you!
You should absolutely be consulting with your Dr. on both withdrawing and the potential affects on any unborn child. In addition, I have found pharmascists to be a wonderful source of information on any drug and again how it can impact both fertility and pregnancy. I don't think you should try to withdraw on your own, I am sure your Dr. can make it both safer and more comfortable for you. Good luck!!