"16, i got this in late july. i wanted it because the effectiveness of it and the fact the hormones are synthetic. i took some kind of medicine in the morning to open my cervix and i was on my period at the time. it was the worst pain i had ever had, like an extreme period cramp for three days. i couldn&#039;t sleep at night or eat. i took some midol that helped my sister when she got hers but nothing i took helped at all. but it only lasted 3 days. i had spotting for the first month and had a normal period with slightly worse cramps, but it was nothing ibuprofen couldn&#039;t fix. the strings sometimes stab my partner and we have to stop, but it is effective. he finishes in me pretty much everytime we have sex and i haven&#039;t gotten pregnant so far."