Yes, you can plan for a pregnancy but once you find out you are
pregnant you need to increase your
thyroid medication as the baby is totally dependent on its mother for thyroid hormone in pregnancy.
What you need to ensure right now is taking the medicine on an empty stomach &a wait for atleasf 1hour before you consume any coffee, tea or breakfast. You. Can have water. No need to increase your dose.
Also you should compulsory have doctor consult for your thyroid once you become pregnant.