It is non hormonal, so you do not get the hormonal
side effects of other IUDS, and the only
side effect that I personally had was cramping the first two weeks it was in, because my body was getting used to it. Here are some links that may help.
A 'quiz' that may help you decide: http://www.webmd.com/sex/birth-control/birth-control-quiz
Info about Paragard: http://www.paragard.com/is-it-right-for-me/FAQs.