Usually i got periods for 4 days 1st,2nd were heavier and then 3 rd day it would reduce and 4th 5th day used to have spotting. I have hypothyroidism since 5 years now i was on tablet 25 mcg last Oct 24 i had my miscarriage and doctor changed my tablet dosage from 25 mcg to 37.5 mcg i done my tsh in January it was 3.3. And i am also trying to conceive naturally but not pregnant till now. Is there any concern ?i am worried about it . Is this period getting lighter related to the hypothyroidism ? Or is it anything else??