birth control
"I got Nexplanon and my doctor told me in advance that its possible to bleed for 3 months but if it doesn't stop after 60 days, then you should remove it but if you can power through its worth it. I didn't bleed but my side effects were terrible acne and minimal mood swings (both can be managed.) Now I absolutely LOVE it as a birth control. It's the most effective form out right now and has eased my nervousness about pregnancy. I don't need to remember a pill or a shot or to take a ring out. I love it. The only cons are that it hurt when I got it in, and the amount of acne I got, but I think it's worth the effectiveness. 

SIDENOTE: for 99% of others I know who have it, negative side effects stop after 2-4 months"