The choices Contraceptive implant

Contraceptive implant

What is it?

An implant contains the hormone progestogen only. It is a long-term method of contraception that lasts for up to three years. The small flexible rod is inserted just underneath the skin in the upper arm by a trained health professional. It is normally fitted within the first five days of your period and provides immediate protection. If the implant is fitted on any other day, an additional method of protection must also be used for seven days.

How does it work?

The implant works by:

• Stopping the ovaries releasing an egg
• Thickening the mucus of the cervix to act as a barrier to sperm
• Stopping the fertilised egg settling by keeping the lining of the womb thin

How effective is it?

Once in place the implant is over 99% effective.

What are the benefits?

• You do not have to remember to take a pill every day
• You are protected against pregnancy for up to three years
• Fertility normally returns immediately after removing the implant
• Does not interrupt sex
• Suitable for breastfeeding women
• Ideal if taking estrogen is not an option
• Hormones do not have to go through the stomach so protection is not affected by sickness or diarrhoea
• It may protect against cancer of the womb
• It may reduce heavy periods

Who may not be able to / may not want to use it?

Women who:

• Don't want any changes to their periods
• Have breast cancer or have had it in the last five years
• Have active liver disease
• Have had a heart attack or stroke
• Have unexplained vaginal bleeding
• Don't want to have a small procedure to fit and remove the implant
• Might be pregnant
• Experience migraines with aura

Possible side-effects?

Not all women will experience side-effects

• Periods can be irregular, more frequent, heavier or stop altogether
• Can increase the chance of spots, headaches
• Some women report having tender breasts, changes in mood and sex drive
• A small increase in risk of being diagnosed with breast cancer

What if:

I forget to book my three year appointment for my implant to be replaced?

You should make an appointment to see your doctor to have your implant replaced as soon as you remember. It is important to have your implant changed at the right time. If it is not, you will not be protected against pregnancy.

I want to become pregnant?

The implant can be removed at any time. Your periods and normal fertility will return quickly. Ideally you should wait for one period before trying to get pregnant. Waiting means the pregnancy can be dated more accurately and you can start pre-pregnancy care, such as taking folic acid and stopping smoking.

This method does not protect you against sexually transmitted infections, so you may need to use a condom as well.

Remember: Contact your doctor or nurse if you have any concerns or are worried / unsure about anything to do with your contraception.