Nexplanon birth control

Justalene
I don't know about any of you but I have issues with the Nexplanon. For those of you who don't know, it's the little rod they put in your arm. I had mine out in on September 2. It was supposed to help regulate my period and help with my cysts. Except instead of sound that, it fucked everything up. I have my period for 1-2 weeks at a time and then skip a whole month. I don't cramp on my period but during the month I don't have it I have severe cysts, the most recent of which landed me in the hospital..again. Anyone else have issues with it?