Copper
"So far I have had the paragard for about 4 months and I can't complain. It's good for 10 years and after recently giving birth to my second child I love the long term option. It's been effective so far. But there are some down sides, heavy bleeding definitely is a factor is deciding if you want it. When I say heavy I mean changing a tampon almost 6-8 times a day. But in my opinion it's worth it. Also the cramps are not great. They feel like mild contractions, again to me it's worth not getting pregnant again. Insertion was not bad compared to the reviews that I read before getting it. I believe having kids factors into the amount of pain there is. Basically it was a minor pinch and that was it! That day I forgot I had even got it."