Etonogestrel
"I've been on a number of birth controls for the past 10 years and this is by far the best. Not perfect, but the best yet. I Have 4 kids, my last 2 were both birth control babies! I decided to try this. Insertion wasn't what I expected I was nervous for nothing! I bled for the first month but after that I had very light periods and now I have none at all. I get cramps as if I am about to but either don't or just get very small spotting. No issues so far and no pregnancies. No weight gain, no nausea, no headaches and no other side effects. Highly recommended for at least a try!"