"those that first get mirena should not be discouraged. in the first few hours, i experienced menstrual-like cramps. then, i spotted for a straight two months! but, eventually, the spotting stopped and i&#039;ve only spotted for a couple of day in months and months afterwords. i&#039;ve had mirena for almost a year and it&#039;s been a blessing knowing i&#039;m protected and never have to worry about dates and times and &#039;did i take my pill today?&#039;"