birth control
"I was on nexplanon for a year. Let me just say that it was so bad. Sex was excruciatingly​ painful I gained a total of 60 lbs on it. In the 3 years I've been off of it I've managed to only lose 20lbs. I was  moody and had really  bad depression. Did do its job, yes. Was it worth the side effects, no. 
This was my experience on it, however everybody is different."