"i give this a 10 because it has been very effective in preventing pregnancy. i got mine in june 2017 so i&#039;ve had this for 1 year. during insertion i felt a pinch that lasted a few seconds. i did not bleed at all. i was told it was common to bleed 3 to 6 weeks after. i did not bleed until my next scheduled period. it was a day or so off. it was a light flow so it lasted a few days longer. spotting for a few day then a light flow in the middle and finished spotting. i never needed a tampon or a regular pad. i only wore thick liners. i did however experience side effects. for the first few months i had headaches every other day. then right before my period i would get sharp cramps that lasted a day then normal cramps and pain. so far i love it."