Most women get changes to their cycle following an injection. Often, periods will get lighter, or eventually stop. It is also normal to get some irregular bleeding to begin with.
Hormonal methods of contraception can also give temporary side effects, like mild headaches, breast tenderness or skin problems. These will usually settle with time.
Once you have been given the injection the hormone stays in your body for several weeks and there is no way that it can be removed.
Always come and see us if you have any side effects that you are not coping with. If your bleeding is not settling down you can come two weeks early for your next injection.