Etonogestrel
"I do not recommend this type of birth control unless you want to have 4 week periods and counting. Everybodys body is different but the side effects suck.I had mine inserted November 2015 three days after giving birth. I bled for 8 weeks after delivery then it stopped for the 26 days and now I've been bleeding since January 26th and it is February 18th now with no signs of it stopping soon it is very heavy and I made an appointment for the 22nd and I'm getting it removed. They are right about not getting pregnant on it because your bleeding damn near the whole time and your sex drive is out of whack along with mood swings from not getting any lol"