I am trying to get pregnant and have found out that my thyroid is underproductive. It isn't real bad yet. My doctor says I am in early stages of thyroid failure. He was concerned about this mostly because I am trying to get pregnant. My thyroid test has come back out of normal ranges before and he hasn't been concerned. He was this time because low levels of thyroid hormone are associated with a higher incidents of miscarraige and it was my third test to come back low. (Really high,they test for the thyroid stimulating hormone.) Does anyone know anything about this condition and how much it could affect my becoming pregnant and carrying the baby to full term. He started me on a low dose of synthyroid. I am a religious about working out, and it has probably been my salvation as far as keeping my weight under some kind of control. Even at that, any donut I consume seems to end up on my backside. I would appreciate any info you can pass my way. Thanks!