Levonorgestrel
"I have had my Kyleena almost a month now. The insertion was incredibly painful for me, & I have a pretty strong pain tolerance. I got the IUD to try to lighten my periods. My cramps are unbearable because I have endometriosis. So lighter bleeding=less cramps. Anyway, the first night, the cramps were so painful that I considered going to the ER. The weeks since, I have dull, aching cramps on my right side every other day that are about an 8 on a 10 pain scale. Also have a lot of spotting and weight gain, but eating less. Side note: The procedure was supposed to be 100% covered but I got a $200 office visit charge because my "primary care physician" did not put it in; my OBGYN did. Even though with my ins plan, I don't have to pick a PCP."