It has known security flaws and will display this website and others incorrectly. Your experience will be compromised. Update or change your browser Don't show this notice again. The contraceptive injection also called Depo is an injection of the hormone progestogen. Progestogen is similar to the hormone produced by the ovaries.
This helps to prevent sperm from entering. Depo is injected by a doctor or nurse into the arm or bottom muscle every weeks. When Depo is first injected, or after a break, it can take up to 7 days to start working to prevent pregnancy. This depends on the timing of your menstrual cycle and if you are already using contraception. Speak with your doctor, nurse or pharmacist for more information. Your doctor or nurse will provide a script which you can take to the pharmacy, who will sell you the Depo.
You will need to return to the clinic to have the Depo injected. It will be cheaper if you have a healthcare card. If you do not want to become pregnant and it is more than 14 weeks since your last injection, you can abstain from sex or use condoms until you can have your next injection. It can take up to 7 days for Depo to start working to prevent pregnancy.
During this time, you can continue to abstain from sex or use condoms. If you have unprotected sex in the time when your Depo is late or not effective, you might need emergency contraception.
The injection is not known to harm a pregnancy. It is safe to continue the pregnancy or to have an abortion. Generally, the injection can be administered straight after you give birth, even if you are breastfeeding.
Get your next shot as soon as possible. You will still be protected from pregnancy as long as you receive the dose before the end of 15 weeks. If it has been more than 15 weeks since your last injection. Get your next shot as soon as possible You may not be protected from pregnancy. To reduce the chance of getting pregnant: Use a backup method such as condoms, or do not have sex until 7 days after your shot. Consider using emergency contraception if you had sex without a condom in the last days.
For information on emergency contraception please click here. Seek medical attention immediately if you have any of the following symptoms, as they could indicate a serious complication:. The shot may have an effect on bone density, but this is reversible.
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In this article, we discuss the effectiveness…. How effective is the Depo-Provera birth control shot? Medically reviewed by Carolyn Kay, M. What is it? Efficacy How it works When? Share on Pinterest A person needs a Depo-Provera shot every 3 months to ensure it remains effective in preventing pregnancy. How effective is the birth control shot? How does Depo-Provera work?
When can a person get the birth control shot? Advantages and disadvantages. Side effects. Who should not get the birth control? Latest news Scientists identify new cause of vascular injury in type 2 diabetes.
Adolescent depression: Could school screening help? Related Coverage. Your doctor will usually give the shot in your upper arm or buttocks, whichever you prefer. Otherwise, you need to use a backup birth control method for the first week. If 14 weeks or more have passed since your last shot, your doctor may perform a pregnancy test before giving you another shot. The Depo-Provera shot is a highly effective birth control method.
Most women taking the shot have progressively lighter periods. This is perfectly safe. Others may get longer, heavier periods. Women who use Depo-Provera may also experience decreased bone density. This happens more the longer you use it and stops when you stop using the shot.
Your doctor may recommend you take calcium supplements and eat foods rich in calcium and vitamin D to help protect your bones. Though rare, serious side effects can occur. The primary benefit of the birth control shot is its simplicity. However, there are also some drawbacks to this method.
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