birth control
"I was on the nuvaring for 2 years. I loved it. However, I started getting low back pain on a Saturday and thought nothing of it. Monday I had a doctor appointment, the dull pain was still there but I thought maybe it was because I was going to take the ring out in a few days to start my cycle. However, that night my leg started swelling. By the next morning the pain was so unreal I almost vomited. I went to the ER where they discovered I had a rapid growing blood clot in my femoral vein (area between groin and upper  leg) that was 6 inches long. I was put on Xarelto for 3 months and on bed rest for a week as they were so concerned it would break off and go into my lungs or heart. It took me 6 months to fully recover from the clot."