various pains and various times of month

most of the aches and pains i get i can figure out based on the time of month. for the last two months, i have been getting a pain similar to that of ovulation right before my period. what causes this?

 

might be that you are developing cysts on yr ovaries, they can get irritated as your hormone levels change just before your period, go to your gp and get a gyne referal......dont let them fob you off!