 [ Symptoms ] should i be concerned if i have hashimoto is thyroiditis and want to become pregnant [ Disease ] hashimoto is thyroiditis is not a reason to avoid pregnancy however some women with hashimoto is thyroiditis do have trouble conceiving in some patients supplementation with selenium is used to try to decrease antibody levels the theory is that lower antibody levels may lead to better success in conception  both before and during pregnancy the levels of thyroid hormones need to be checked to make certain they are in the optimal range for pregnancy this is usually within the range for nonpregnant women but at the higher end of the range