A lot of pelvic pains.

Sara
I'm set to go to the doc on Monday but for the past few months I've been having very strange pelvic pain, not around ovulation time and it's not from my period, although it feels the same as period pains.  I've been having the pain after my period is over.  It can be intense or on my side or all over the uterus area.  Does this mean there is something wrong with my uterus or maybe cysts?  Periods aren't so terrible I need to stay in bed or anything but they are painful.  I don't know what this could be.