Only severe hypothyroidism
with irregular cycles will affect your fertility
. Once your thyroid function is normal and cycles are regular there is no problem in getting pregnant.
One you get pregnant, the chance of miscarriage
is more in hypothyroidism. So you have to bring your TSH
below to 2.5 to decrease this risk.
Hope I have answered your question. If you have any further questions I will be happy to help.
Dr Ajish TP