Etonogestrel
"I hated this. I had it put in 6 weeks after I had my son and I bled non stop for 2 years. Even had to have a blood transfusion. I got it removed in February 2017 and immediately went back to normal periods. I m now 26 weeks pregnant with my second child. Will not ever get this again. It was very effective in not getting pregnant but other than that it sucked"