The Hormonal IUD is a hormone-releasing device no bigger than a matchstick that is fixed inside the uterus (womb) by a health provider such as a nurse or a doctor to reliably prevent pregnancy for three to seven years by releasing a tiny and safe dose of progestin hormone every day. The Hormonal IUD is very effective, is hormonal, and has side effects like spotting, light or no periods at all, cramps, etc