I've had Paraguard for over a year now and I was promised by my doctor that the terrible cramps and bleeding would get better after 6 months. Well about a week before my period and a week after I get the worst cramps and it seriously feels like someone is punching me in the uterus. My period also lasts about ten days. Does it get any better or am I better off switching to Mirena? Please let me know, thanks!