Nexplanon
"I got this implant in Sept 2012, and I'm definitely looking forward to taking it out this coming Sept.  The only pro here is that it is definitely effective. I've been in a committed monogamous relationship for the duration of having this implant, we are a very "active" couple, and I'm still kidd-o free w/o worry. The Cons: I weighed in about 140 when I got this, and am currently weighing in at 167 - almost 30 lbs heavier in less then three years. Disclaimer, I am now 31, so a small amount of this may also be due to slowed metabolism, but def not 30 lbs. I sometimes have a 2 month period, and I sometimes go two months w/o one, there is no predicting it. I have crazy mood swings for no reason, even when I'm not on my period.    Not worth it."