Levonorgestrel
"Got my IUD inserted toward the end of my period on July 6th. I just had a baby in March and it took me almost 3 months to start my period. Insertion wasn't too bad. Felt a little pinching but that was it. I did bleed after insertion that that lasted about 2-3 days. After that I started having really bad abdominal pain to where I needed to take Ibuprofen all the time. The bleeding did stop after the 3rd day of insertion but then on July 19th I started to bleed heavily and have not stopped since. So basically for these past 3 weeks I have either had sever abdominal pain or heavy bleeding. I'm really not liking this at all. It's irritating to have to go through what seems like an extended period. Considering in having it removed!!"