"i got paragard as my first form of birth control because i didn&#039;t want to deal with hormones. i went through 2 models within 5 months. it turned out that my uterus was too small for the iud. while i was on it though, the only side effects i had was a slight increase in my period (two days longer and a little bit heavier) and a more sensitive cervix. if my boyfriend even slightly hit my cervix, it would send a jolt of pain up my spine. i really didn&#039;t mind it and i wish i could still be using it. i wouldn&#039;t worry about the copper. and because it&#039;s hormone-free, there is very little risk of having symptoms caused by chemicals (like moods or weight-gain)."