Copper
"I just got my Paraguard removed after 5.5 months. I was having cramps that made me yelp aloud and miss work, my periods were very heavy (like overnight pad plus a heavy tampon every two hours), and I had regular nausea. I really wanted to have a hormone free option but those side effects were too, too much. I'm pretty sensitive to hormones but it comes very recommended by many women. I'm 33 and have never had kids."