There are several forms of hormonal contraception available today, birth control pills, hormonal skin patches, implants, and coils. They all affect hormone levels and prevent pregnancy, but they are used in different ways. How does one decide which form works best for their needs? In part 3 of the 3-part series, listen as Jennifer Shark a Certified Nurse Midwife at MIT Health with many years of contraceptive counseling experience, discusses what factors you should consider if you are thinking about getting an IUD.