How long has it been since you had your period?? The longer its been the heavier and more cramping you could have....I didn't have a period at all for 6 months and a regular period for a couple years (other than a couple days of spotting) so when I went on provera to bring on a period I felt like I was bleeding to death basically....Ibprofen became my best friend for the cramps....Well good luck
jocelyne