Hello doctor, I am 20 weeks preg and before 15 days my tsh was 6.63 and ft4 was a bit low too. So gynaec prescribed me 125 mcg daily and endinocrologist prescribed mon to fri 100 and sat sun 200. I said my gynaec that endocrinologist suggest dose as follows. On this she said that its not only controlling your thyroid but also to see that you are preg and baby shud get stable dose. If baby does not gets stable dose it might become hypo or hyperthyroid. And I explained this view of my going to my endocrinologist so he said that due to long life of thyroxine there is nothing like stable dose. Your baby is safe. Now whom shud I follow as m v.worried.please help.