IT JUST TAKES A MOMENT
The contraceptive injection is a shot of hormones – either a progestin alone, or a progestin and estrogen – that stop the ovaries from releasing eggs and thicken the cervical mucus to make it harder for sperm to move. It works much in the same way as other hormonal contraception methods, such as the pill, except one shot will have an effect for 1 or 3 months, depending on the type. This means, however, that its effects are not reversible once it has been administered.
Once you have decided that the contraceptive injection is right for you, your doctor or nurse will administer it. All you have to do is remember to return on time to get the next shot, either every month or every 3 months, to make sure the injection is at its most effective. If and when you want to return to fertility, it’s worth consulting your doctor or nurse as it may be some time before you can get pregnant.