Contraceptive injection

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.

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.