A contraceptive implant is a long-term solution for women who want to protect themselves against unwanted pregnancy. The implant lasts up to three years but can be removed at any time if you change your mind about using it, making it a flexible method of contraception.
You might consider having a contraceptive implant if you don’t want the hassle of taking a daily contraception such as the pill or if you cannot take contraception that contains oestrogen. It’s also a good choice if you have no plans to get pregnant in the next couple of years.
A small flexible tube, the implant has to be inserted in the upper arm by a health professional, such as a doctor or a practice nurse. In the UK, the implants used since 2010 are called Nexplanon, which are around 40mm and can be picked up easily by x-rays or scans. They can be removed at any time during their three-year lifespan and your fertility will return to normal very quickly, meaning you could conceive soon after the implant has been taken out.
The implant releases progestogen into the body, preventing conception by stopping the ovary releasing an egg, thinning the lining of the womb and thickening the cervical mucus to make it a more hostile environment for the man’s sperm.
Fewer than one woman in every 1,000 using a contraceptive implant will get pregnant in one year, making this method more than 99% effective.
There may be some side effects from using the implant and if yours are uncomfortable or worry you, you can ask for the implant to be removed. The most common side effects are irregular periods, either heavier or lighter, but these are likely to settle after the first year of the implant. In some cases, your periods will actually stop but this is not something to be concerned about.
When discussing whether to go for the implant with your doctor, ask for information on any medication or natural remedies that can have an effect on how well the contraception will work.