Levonorgestrel
"I got my liletta nearly four months ago to the day (12/8/16). Despite a rough start things seem to be levelling out now and I'm pretty pleased with it.

 Insertion definitely hurt, but if you take some ibuprofen prior to it the pain shouldn't leave you too miserable. I already had really heavy, painful periods so my first period on it was a special sort of hell. I also had weird, intermittent spotting and cramping for the first 2-3 months, but by March things started to lighten up. Cramps can now be treated with an  in-pants heating pad and my flow is but a trickle. I reckon my period will stop altogether within the next few months.

If you can tough out the rough start it's worth it! Doesn't last as long as the others but still gets it done!"