I had it for 3 years and never got a period and no crazy symtpoms except I'd get cramps when I was around my mom when she was on her period weird I know lol
I didn't have a good experience with it. I bled heavily for a year. My periods were basically reversed: I'd have a very heavy period for three weeks, and then be off for a week. I went to get it removed and it had actually moved out of place and I had to have surgery to get it out because it was about 2cm away from causing muscle damage.