birth control
"I had paragard for 8 years, I was loving it the fact there is No hormones. I did not have any side effects of weight gain, ache, or anything. However about 7th year my cramps on my left side lower body were getting bad week prior to the menstrual cycle, pain level an 8. But more recently my pain was so significant that I was taking 600mg at the bare min. twice a day. My muscles in my buttocks was knotted up down to my frontal thigh. Extreme pain. Missed days of work. I recently had it removed already I feel SO MUCH better. 
Love&Hate Paragard."