Have you been told that you have a thyroid issue? Is it affecting your fertility? Read this article from RESOLVE about Ovulatory Disorders.
“The major effects of abnormal thyroid levels relates largely to changes in ovulation and menstruation. Ovulation may be impaired by changes in the production of: sex hormone binding globulin (SHBG), follicle stimulating hormone (FSH), estrogen, and androgens to name a few.”
Every bit of information you can gain about possible contributors to your infertility will be invaluable. Often infertility is the result of multiple conditions so discuss with your doctor any and all concerns you may have.