The contraceptive implant is  a highly effective method of birth control, the device is about the same size as a matchstick.  It is placed just below the skin of your upper arm where it releases the hormone progestin in small doses and prevents your ovaries from releasing eggs but also thickens your cervical mucus making it hard for sperm to move around the womb and fertilize an egg.    99.95% effective, it is suitable for women who want long acting reversible contraception for up to 3 or 5 years and wish to avoid daily, weekly or monthly regimen.  It can offer an alternative to those affected by the hormone Estrogen and can be used when breastfeeding six weeks after childbirth.  In some women it may reduce heavy and painful periods, in others it may initially cause a change in bleeding patterns.  Does not protect against HIV infection and other sexually transmitted infections.

The (IUD) intrauterine device  - intrauterine meaning inside the uterus.  The device immobilises sperm making it hard for them to move around the womb but does not stop the ovaries from making an egg each month. Once inserted it can stay in place in the womb for 5 or 10 years (depending on the type).  99% effective, suitable for women who want long acting reversible contraception and wish to avoid daily, weekly or monthly regimen.  It isn't affected by other medications.  It can offer an alternative to those affected by the hormone Estrogen and can be used when breastfeeding.  Fertility returns to previous levels once the IUD is removed.  Small risk of infection at insertion and of expulsion. It may cause cramps and/or irregular bleeding.  Does not protect against HIV infection and other sexually transmitted infections.