Copper
"After doing my research on which method of birth control would be best for me (bc I tend to be forgetful) I went with copper iud. I had mine inserted August 2015 and I've had no problems. The first few seconds my Gyn inserted the iud it was a small pinch, but the pain went away once she was done. I had my period for 5 days and since then I've had a regular monthly period that last 3-5 days! :) I had read many discouraging reviews/experiences and I'm glad I still decided on getting this iud (non hormonal). No heavy period, each period is 3-5 days, no cramps, sex life is better, no weight gain, highly recommend it if you're not trying to have a baby within the next 2 years!"