"i had the mirena inserted 6 weeks after giving birth to my 3rd baby in august 2011 (i had also had it for a year after the birth of my 2nd baby). inserting the mirena has never been a painful experience in either time i had it put in, maybe because i had it put in after childbirth. i&#039;m not sure.. but i spotted off and on for 6 months (same as the other time) then my periods stopped completely, for 8 months! i had no side effects for my first year, which was wonderful... until oct 2012. i was spotting a little heavy for 2 weeks. i started having cramps, backaches, nausea, headaches... i felt like i was pregnant (which happened the first time i was on mirena). i was too uncomfortable, and had it removed today by the obgyn. not using this method again."