birth control
"I had previously been on the shot for 9 months before. I didn't experience any of the horrible side effects of the shot until after my 3rd shot. I had gained 16 lbs. Nonetheless, I decided it was time for a change. 
So far my experience has been pleasant. The insertion did not hurt except the numbing. I did not bruise. And it's been long healed. I did have some small pimples pop up, skin irritation that went away in a week. I hadn't had my period since October 2012, shortly after getting the Depo shot. In July 2013, a month after getting Nexplanon, I began spotting. It lasted about 7-8 days. But have not had any spotting/periods since then. I have lost 4lbs."