Why is it?

  My Overies Hate me, but they love x-mas!  Why is it that,  every x-mas I get my period... How the hell do my overies know its x-mas??? Why is it that, my period is completely sparatic ( while not on birth control ) yet every year my overies know when x-mas is... If my period doesnt feel like showing up every month, it doesn't ...but it never misses x-mas! What selfish overies I have...  The only presants they are getting: Tampons and Tylenol...hope its worth it to them GRRR.  (I have to say my overy-bitching is poetic ...hmm!)  xoxo - Merry X-MAS!