Emergency Contraception

3 Steps to Get Started

How Siena Works

1. Start your visit
1. Start your visit
Answer a few questions on your concerns, lifestyle and medical history.
Book appointment
2. Speak with a doctor
2. Speak with a doctor
A doctor will review your details and video call you at a time of your convenience.
3. Free delivery to your door
3. Free delivery to your door
Get your treatment shipped right to your door in discreet packaging at $0.

What is emergency contraception/morning-after pill?

The emergency contraception/morning-after pill is a form of contraceptive, designed only to be taken in an emergency.

Emergency contraception/morning-after pill is used to prevent pregnancy for women:

  • who've had unprotected sex or
  • whose birth control method has failed (e.g. condom tore/broke/slipped, forgot to take birth control pill).

The emergency contraception/morning-after pill is intended for backup contraception only, and should not be relied upon regularly. If you find that you are needing the emergency contraception/morning-after pill quite often, then you may want to consider our range of regular contraceptives, such as birth control pills or patches.

How does the emergency contraception/morning-after pill work?

Emergency contraception/morning-after pills contain either the hormone levonorgestrel (Postinor-2) or ulipristal acetate (ella). They work by:

  • stopping or delaying the release of an egg from an ovary; and
  • making it harder for a fertilized egg to attach to the uterus.

When should I take the emergency contraception/morning-after pill? 


When to take

Up to 120 hours (5 days) after unprotected sex

Up to 72 hours (3 days) after unprotected sex


Up to 98% throughout the entire 5-day window

Up to 95% if taken within 24 hours

  • Up to¬†85%¬†within 24‚Äď48 hours
  • Up to¬†58%¬†within 48‚Äď72 hours
Types of emergency contraception/morning-after pill, when to take, effectiveness

How do you know if the emergency contraception/morning-after pill worked?

You will know that emergency contraception/morning-after pill has taken effect when your next period begins. You should expect your period around the same time that you would usually get it, though it is not uncommon for it to be a few days early or a few days late.

If your period is more than seven days late after taking the emergency contraception/morning-after pill, it is recommended to take a pregnancy test.

Are there any long-term side effects from the emergency contraception/morning-after pill?

No, there are no known long-term side effects associated with taking the emergency contraception/morning-after pill.

Side effects of the morning-after pill, which typically lasts only a few days, might include:

  • Nausea or vomiting
  • Dizziness
  • Fatigue
  • Headache
  • Breast tenderness
  • Bleeding between periods or heavier menstrual bleeding (spotting)
  • Lower abdominal pain or cramps

Can I buy emergency contraception/morning-after pills over the counter in Singapore?

In Singapore, emergency contraception/morning-after pill is only available with a prescription from a doctor or GP subject to a consultation. You cannot purchase the medication over the counter from retail pharmacies such as Watsons or Guardian.

At Siena, you can speak to a doctor online and order Postinor-2 or ella safely and quickly (if prescribed). We also offer free 4-hour discreet delivery, to ensure that you get the medication you require quickly, increasing the chances of its effectiveness.