Too embarrassed, too busy or just don’t know the right question? This page should cover a lot of aspects of what you need to know.


    The injection must be given by a healthcare provider. Depending on where you live, you can have the injection done at your local doctors or family planning clinic.

    Some women do experience weight gain, if this happens to you, speak with your healthcare provider, it may be that an alternative form of hormonal contraception is better suited to you.

    You do need to have the injection once every two month or once every three months, depending on the type of injection you have. The amount of hormone which is injected to prevent unintended pregnancy will only last around 8-12 weeks depending on the type, so if you miss an injection you will not be protected against pregnancy.

    Some women think that the next injection should only be given when the next monthly bleeding begins. Bleeding episodes should not guide the injection schedule. However, a woman should receive the injection every 4 weeks or every 12 weeks depending on the type. The timing of injections should not be based on her monthly bleeding.

    When you use injectable contraceptives you may have bleeding and spotting between periods. The menstrual bleeding may vary from slight staining between menstrual periods to breakthrough bleeding, which is a flow much like a regular period. It occurs most often during the first few months of usage, but may also occur after you have been using the injectable contraceptive for some time. Such bleeding may be temporary and usually does not indicate any serious problems. It is important to continue using the injections on schedule. If the irregular bleeding or spotting is heavy or lasts for more than a few days, you should consult your doctor or healthcare provider.

    If you are sexually active and do not currently wish to have children, you can continue having the injections to protect against pregnancy, providing you find the method suits you and you have regular check-ups with your doctor or healthcare provider.

    Periods and fertility may take up to a year to return after stopping injections, depending on the type of injectable, and this may vary from woman to woman.

    Generally, no. Some women using monthly injectables report these complaints. The great majority of injectables users do not report any such changes, however, and some report that both mood and sex drive improve. It is difficult to tell whether such changes are due to monthly injections or to other reasons. There is no evidence that injectable contraceptives affect women’s sexual behavior.

    Depending on the type of injection you choose, the birth control shot lasts for two to three months. To prevent pregnancy you need to receive a shot once every two months, or once every three months, from a trained healthcare provider.

    The contraceptive injection has 94% efficacy, meaning that approximately 6 out of every 100 women in a year will experience an unintended pregnancy.





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