Ive had mine in for 2 years now and havent had any problems with it, my periods stopped for about a year, now i just get them random months, and for the first 6 months it does make your body think your pregnant like sensitive nipples and a few hormones which is weird but all contraceptives have downfalls, best things are not having to worry about anything for 3 years, with the pill it made me crazy proper mood swings and i went to my heaviest aswell which i dont think was a coinsedense.