"i am 28 and just had my 3rd child. i had the mirena put in 8 weeks after giving birth. i didn&#039;t experience any discomfort, my doctor, the nurse and i were having a conversation during insertion. i did not have any cramping probably because my doctor recommended that i take a pain killer an hour before the procedure. i don&#039;t feel the strings they told me to look for but it has now been 3 days and i feel no side effects. i hope this helps someone make a decision to do this, it was a great choice for us."