The contraceptive injection is over 99% effective
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The injection (Depo-Provera) is given every 12 weeks (three months) in the top of your bum cheek and is a very effective method of contraception. |
It contains the hormone progestogen, which works by stopping eggs from being released from the ovary. The progestogen in the injection also makes the mucus in the neck of the womb thicker. This makes it difficult for sperm to enter the womb. |
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The injection is a very effective contraceptive and you don't have to worry about getting pregnant or taking pills for 3 months! |
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It's hard to predict what a woman's bleeding pattern will be when she has the injection, periods usually become irregular or can stop completely. A small number of women will have heavy or prolonged bleeding but this can settle down after a few months. |
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Regular periods and fertility may take up to a year to return after stopping the injection. |
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Some girls worry about putting on weight if they have the injection but not everybody puts weight on and for those that do, it is usually only a few pounds over a year. |
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