16 week pregnant previous I check my thyroid it was 11.8 at that time I was 6 week pregnant after that I start medicine thyronorm 100 mcg and after taking medicine for about one month my tsh level came to .83 and FT4 WAS 1.41 NG/DL DURING THIS TIME I AM 8 week pregnant doctor say you continue with same medicine thyronorm 100 mcg then after 2 month I again check KNOW TSH LEVEL WAS 0 .69 and FT4 IS 1.21 THIS TIME I SHOW MY REPORT TO DOCTOR SHE SAY STILL U HAVE TO CONTINUE WITH SAME MEDICINE WITH SAME POWER 100 MCG IS IT NECESSARY TO TAKE SAME dosage.