How an injectable works
Injectable contraceptives are an injection into a woman’s arm, thigh or buttock to prevent unplanned pregnancy.
There are two types of injectable contraception. One can prevent pregnancy for one month, and the other for three months.
The injectable is a safe and effective method of contraceptive that is usually injected into the arm by a trained professional. It uses a hormone, like those naturally produced by a women’s body, to prevent pregnancy. After one or three months, depending on the type you use, you will need another injection to continue to be protected. It is important to get the injection on time.
It can take up to seven days before the injection starts to work. You can use a condom for those 7 days. When you stop using the injection, it usually takes between six months to a year for your normal fertility to return.