"insertion of the copper coil was uncomfortable and will give you painful cramps. but i do think the pain varies a lot on the individual and their tolerance. it definitely hurt, and it made me very light-headed but that really shouldn&#039;t deter you from the long-term benefits. my issue with the copper iud came after insertion (around 1-2 hours after) when i had pain in my lower abdomen which was excruciating. it was the worst pain i have ever felt. i think it is fairly uncommon to experience pain like i did, but if you do, just know that it is normal. it lasted 48 hours, and i had to go back to the clinic because i was paranoid i had a perforation. everything was fine, of course! now i am cramp-free and loving my decision. be brave!"