Hello all... i am new at this site.... but i am just so confused and need help... I have been on progesterone for almost a year now.... and it has worked great the whole time i have been on it!! But once i refilled this last prescription it seems like it isnt working for me. I have been using it just like i have always used it.... and i have started missing my periods again.... btw... i am 24 and have PCOS.. and i have checked over and over....and im not pg. Its just so weird.... because i get the symptoms like i am gonna start a period....but nothing... and i have been struggling wit this stupid thing since last year....and it always seems like when it starts going great.... it messes up...and im just so tired of it.... and dont know what to do... please help!! b :(