I've only gotten my 2nd shot, my third is next month. Im concerned whether I should stop or not. I get really irregular periods from it which is frustrating. Anywhere from light to heavy, a couple days or three weeks. I'm miserable. And not knowing which way it could go is obnoxious. I'm wondering if this eventually stops and they go back to normal or if they will stop or what ? Is everyone different when it comes to this?