"i have had mirena 4 years and 7 months. the insertion was painful, but after i left the doctors office i did not cramp. i had small amounts of spotting for 3 days after. my hormonal acne had gotten worse along my jaw line, creating cystic acne, however i would rather keep mirena regardless. i have not had a period since 1 month after insertion, no headaches or cramps. i have gained about 10 pounds. i will be getting mirena at my 5 year mark again."