I tried one after my DD was born because I was unable to tolerate oral contraception, but I couldn't stand the side effects.

I didn't have a history of anything listed by Jo*Mar above, but I did end up having mine removed after about 6 months because of increased bleeding and nasty dysmenorrhoea.

I was among the small percent that don't tolerate them but it's good to get both sides when making a decision. In the end, I guess you just have to listen to what your doctor tells you, read what you can about them and then weigh up the pros and cons.

Good luck with what ever decision you make.