i am 20 yr old nd i had regular periods before 2 month. But from last 2 month i didnt had my periods. i had my thyroid test nd my TSH is high around 10. and negitive pregnacy test. I had sex 4 month ago and after that had 2 periods on time. But as i hve hypothyroidisam its expected to hve more periods than why i am missing my periods?