A<unk>  is an<unk> able medical device used for the purpose of birth control. The<unk>  may depend on the timed release of hormones to hinder ovulation or sperm development, the ability of copper to act as a natural spermicide within the uterus, or it may work using a non-hormonal, physical blocking mechanism. As with other contraceptives, a<unk>  is designed to prevent pregnancy, but it does not protect against sexually transmitted infections.
Contraceptive implant
Combined hormonal contraception
Heat-based contraception
Long-acting reversible contraception
Intrauterine device
Fertility medication
Hormonal contraception
Contraceptive vaginal ring