TTC and thyroid issues

Anyone conceived or TTC with thyroid issues specifically Graves' disease.  I'm fully regulated on my medication for quite some time now but had radioactive iodine treatment over a year and a half ago.  Anyone has issues TTC or gotten pregnant fairly easily.  My doctor says it won't be an issue my mom who has thyroid problems says it will be harder and husband is convinced it will be an issue.  We have only been trying for 2 months