mam im 25 years..i took thyronorm 25 mcg for the past 3 months..im married for 1 year..my period f are regular except last month, it was almost 24 days i missed my period, when checked for pregnency test is was negative and while bleeding it was normal as i dont have any low back pain or clotted bleeding etc..but after d very first month i took d tablet d very next periods skipped for 5 days but d bleeding was very low but it continued as usual as 4 to 5 days..when retested after 45days my thyroid level was normal but my doc asked to complete it and not needed in future..