OK, thank you. That makes sense. So I'm assuming once I get pregnant my dose will have to be altered. Thanks.
Carisa
carisa,
that TSH level should be fine for trying to conceive.
the issue is once you conceive. thyroid hormone circulates in your blood bound to proteins, called thyroid binding globulin and albumin, but only the free thyroid hormone is active. estrogen, such as occurs during pregnancy, elevates levels of these binding hormones, so once you get pregnant, you should have TSH monitored closely to determine whether the synthroid dose needs to be increased. taking fertility medications also elevates estrogen, though to a much lesser extent and for a shorter time, so this typically is not a problem during the treatment phase. david