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Contraceptive injection

The contraceptive injection contains hormones, just like the pill. It prevents pregnancy, and is very reliable. An injection protects you for 3 months.  

How does it work?

Hormones in the contraceptive injection make sure that you don’t get pregnant. 1 injection protects you against pregnancy for 12 weeks.

What you need to know

  • Ask your doctor if this injection is suitable for you.
  • A doctor gives you the injection. So you have to go to a doctor or other healthcare provider for each injection.
  • A contraceptive injection protects you for 12 weeks. 

Where can you get the injection?

You can get the injections done at your doctor’s practice.

Your period

You can’t postpone your period with the contraceptive injection. 

Advantages and disadvantages


  • You only need to think about it once every 3 months.
  • You'll have your period less often, and after a year your period usually stops completely.
  • The injection is even reliable if you’re vomiting or have diarrhoea.
  • Nobody can tell that you are using contraception.


  • You have to go to your doctor every 3 months to have the injection.
  • If you have any side effects, you can't just stop using it. The hormones stay in your body for 3 months.
  • When you do stop, it may take some time before you’re fertile again.
  • The contraceptive injection doesn’t protect against STIs.
  • You may have bleeds between periods.

When do you run the risk of pregnancy?

  • If you are too late getting your next contraceptive injection (later than 3 months).


Remember: the contraceptive implant doesn’t protect against STIs. To prevent STIs you must use condoms too.