Hi doctor, here I have submitted my thyroids results  one is before one month and another  one is after  taking thyroxine sodium tablets I.P. 25 mcg for one month. I am 13 weeks pregnant. My thyroid is normal after taking the tablets for one month but doctor has advice me to take the medicine for my whole pregnancy but i am scare that taking medicine regularly might make tsh level too low till another 6 months. I just want to know if i had other options to maintain my thyriod level, or is it fine to take the prescribed medical regularly. Can I take calcium and iron tablets while taking medicine for thyriod.