Information Sheet

Emergency contraceptive pill (Morning After Pill)

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What Is the Morning After Pill (ECP)?

The emergency contraceptive pill (ECP) can be taken to reduce the chance of getting pregnant after having unprotected sex, either because contraception wasn’t used or if contraception has failed, such as a broken condom or if you forgot to take the Pill. The emergency contraceptive pill is often called the “morning after pill”. There are two different types of ECP that can be bought from most pharmacies in Australia without a doctor’s prescription.

• One type can be used up to 72 hours (3 days) afterwards. It is available over-the-counter without a prescription at a pharmacy.
• The other type is a newer option that can be used up to 120 hours (5 days) afterwards. It can also be bought without a prescription at a pharmacy, but its availability in Australia is highly limited, so it may be difficult to obtain.

It’s important to remember that emergency contraceptive pills only work up to 72 or 120 hours after unprotected sex, depending on the type taken. Their effectiveness decreases significantly after the first 24 hours, so it is recommended to take them as soon as possible.

How does the morning after pill work?

The ECP may stop a pregnancy before it starts by stopping or delaying the release of an egg from the ovaries. The ECP does not prevent fertilisation (sperm meeting an egg), inhibit implantation or end a pregnancy that has already started. It is not an abortion pill. It also doesn’t provide any on-going contraception and offers no protection against sexually transmitted infections (STIs).

When do I take the morning after pill?

The original ECP is approved for use up to 72 hours (3 days) after unprotected sex. A newer ECP is effective for up to 120 hours (5 days) but the earlier it is taken the greater the chance that you will not become pregnant.

How effective is the morning after pill?

Emergency contraception does not prevent all pregnancies. Just how effective the emergency contraceptive pill is at preventing pregnancy is complicated and depends on when unprotected sex happened and at what stage of your menstrual cycle you are.

There are differences in effectiveness of the two types of ECP. Your pharmacist or healthcare professional can discuss your options with you.

How do I know which emergency contraception is right for me?

Your pharmacist or doctor can help determine which emergency contraception pill is best for you. The choice depends on:

• How long ago unprotected sex occurred.
• Your body weight.
• Whether you are breastfeeding.
• Any medications or medical conditions that might interfere with the pill’s effectiveness.

Alternatively, you can consider using a copper IUD as an emergency method of contraception within 5 days of unprotected sex, or 5 days after expected ovulation. It’s more effective than the ECP. The Copper IUD is also a good method for those who want a long-term, reversible, convenient contraceptive, as it can last up to 5-10 years. Call 1300 003 707 to book a nurse chat with us.

Who should not take it?

There are very few people who cannot take the ECP. Your pharmacist or doctor will ask you some questions to make sure ECP is right for you.

What are the side effects of the morning after pill?

Mild, short-term side effects may include headache, nausea, abdominal pain, dizziness and changes to your bleeding pattern.

If you vomit within 2 to 3 hours of taking the tablet, you will need to take another tablet.
If successful in preventing pregnancy, most people will have a normal period at the normal time, though it may come early or a little late.

What should I do next?

Instructions for starting or restarting hormonal contraception, such as the Pill, after ECP differ between the two types. After taking the newer ECP it is recommended to delay restarting regular hormonal contraception for 5 days. Your pharmacist or healthcare professional will discuss this with you.

It’s a good idea to make an appointment with your doctor or us (on 1300 003 707) within 2-3 weeks to assess whether the ECP has prevented pregnancy and to discuss a reliable method of contraception. If you do not get your period within 3 weeks of taking ECP you must see a doctor as you may be pregnant.

What if I become pregnant?

There is no evidence that the ECP will harm development of the fetus if you decide to continue with the pregnancy.

How often can I use the emergency contraceptive pill?

Although there is no limit to the number of times you can take the ECP, you should only use this in emergencies and not as a regular method of contraception. It doesn’t prevent pregnancy as effectively as other contraceptive methods.

Where can I get it?

You can get the ECP from pharmacies without a prescription. Your pharmacist will need to ask a few simple questions before you can receive it.

If you are using one of the less reliable methods of contraception, such as condoms, you may consider asking your doctor for an advance supply “just in case”.

Do I need to follow up after taking the morning after pill?

It is recommended to follow up with a healthcare provider within 2–3 weeks to:

• Confirm the pill was effective.
• Discuss long-term contraception options.
• Screen for STIs if applicable.

Contact your doctor if your period is more than 7 days late, lighter than usual, or if you have concerns about pregnancy.

What can stop the morning after pill from working

The emergency contraceptive pill may not work as effectively if:

• You are already pregnant.
• You take it too late after unprotected sex (more than 3 or 5 days, depending on the type).
• You are taking medications like St. John’s Wort or barbiturates that interfere with its effectiveness.
• You vomit within 2 to 3 hours of taking it (you will need another dose).

If you are concerned about the effectiveness of the emergency contraceptive pill or require ongoing contraception advice, you can call 1800 My Options for support.

Alternative Emergency Contraception Options

If the morning after pill is not suitable, a copper intrauterine device (IUD) is the most effective form of emergency contraception. A copper IUD can prevent pregnancy if inserted within 5 days of unprotected sex and provides ongoing contraception for up to 10 years. Speak to a healthcare provider to discuss this option.

Frequently Asked Questions About the Morning After Pill

What should I do if I vomit after taking the morning after pill?

If you vomit within 2–3 hours of taking the pill, you will need to take another dose. Contact your pharmacist or doctor for guidance.

Can I use the morning after pill if I am overweight?

The effectiveness of the morning after pill may decrease for individuals over 70 kg. Speak to your doctor about alternative options, such as a copper IUD.

Can I take the emergency contraceptive pill more than once in a cycle?

Yes, you can take the emergency contraceptive pill more than once in a menstrual cycle, but it is not recommended as a regular contraceptive method. For ongoing contraception, consider options like IUDs, contraceptive injections or implants.

Can the emergency contraceptive pill delay my period?

Yes, the ECP can affect your next period. It may come earlier, later, or be heavier than usual. If your period is delayed by more than 7 days, take a pregnancy test.

Can I get the morning after pill in advance?

Yes, you can ask your doctor or pharmacist for an advance supply of the morning after pill, especially if you are using a less reliable contraceptive method or are concerned about future access.

What is the difference between the morning after pill and an abortion pill?

The morning after pill prevents pregnancy by delaying ovulation and does not terminate an existing pregnancy. An abortion pill, on the other hand, is used to end an already-established pregnancy.

Can I take the morning after pill while on regular birth control?

Yes, the morning after pill can be taken if your regular birth control fails, such as missing pills or experiencing vomiting or diarrhoea that affects absorption. Consult your healthcare provider for further advice.

Does the morning after pill affect fertility in the future?

No, the morning after pill does not affect your ability to conceive in the future. It is a short-term contraceptive method with no impact on long-term fertility.

How can I get a copper IUD for emergency contraception?

You can book an appointment with a healthcare provider, such as a family planning clinic or MSI Australia clinic, to have a copper IUD inserted within 5 days of unprotected sex.

Can I take the morning after pill more than 5 days after unprotected sex?

No, the morning after pill is not effective if taken more than 5 days after unprotected sex. For situations beyond this timeframe, consult your healthcare provider for further guidance.

Does the morning after pill protect against sexually transmitted infections (STIs)?

No, the morning after pill does not protect against STIs. If you are concerned about exposure to an STI, consider visiting a clinic for testing and advice on prevention methods.

What should I do if I don’t get my period after taking the morning after pill?

If your period is more than 7 days late after taking the morning after pill, take a pregnancy test and contact your doctor to discuss the next steps.

Is there an age limit for buying the morning after pill in Australia?

No, there is no age restriction for buying the morning after pill in Australia. You can get one from a GP, sexual health service, or emergency department of your local hospital.

If you are under age 16 and purchasing over the counter without a prescription, pharmacists might ask questions or give you a form to confirm the pill is suitable for you. If privacy is a concern, you can ask for a more private space for consultation. If a pharmacist refuses to sell it for reasons other than safety concerns, they must direct you to someone who will (a GP, sexual health clinic or emergency department in a hospital). You can also visit another pharmacy to ensure you get the care you need.

Disclaimer: The information provided on this page is for general purposes only. MSI Australia is not liable for any reliance on this information or advice. If you have concerns about your health, consult your healthcare provider. For urgent care, visit your nearest Emergency Department.

This page last edited: January 2025
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