Welcome to HCM.
In case of hypothyroidism
, the drugs have to be continued for quite some time, at least till you conceive and deliver a baby.
Thyroid is not the only factor responsible for infertility
. Lots of other known and unknown factors influence fertility.
We have infertility problem in couples who according to all investigations are within normal limits, yet they fail to conceive.
Hence no one can predict the time limit within which you can conceive.
Wishing you all the best.