Skyla
"So far I have had Skyla for about two and a half years, It works great,aside from very minimal cramps there is only one major complaint I have,I am 23 but can never have a clear face,as if I am ten years younger. If you do not mind having severe acne it definitely does it's job and prevents pregnancy 100% if put in correctly, Occasionally my partner can feel the strings,as well. And sometimes I do have bleeding from around my cervix if intercourse was a bit rough. I also sometimes have trouble with "dryness" but am unsure if that is related to Skyla. Overall,if you do not wish to have children whatsoever and do not mind having acne,I believe this would be a go-to birthcontrol!"