Can you take a plan b after 24 hours

Plan B One-Step is a type of morning-after pill that can be used after unprotected sex to prevent pregnancy. Plan B One-Step contains the hormone levonorgestrel — a progestin — which can prevent ovulation, block fertilization or keep a fertilized egg from implanting in the uterus.

The morning-after pill is a type of emergency birth control (contraception). Emergency contraception is used to prevent pregnancy for women who've had unprotected sex or whose birth control method has failed.

The morning-after pill is intended for backup contraception only, not as a primary method of birth control. Morning-after pills contain either levonorgestrel (Plan B One-Step) or ulipristal acetate (ella).

Levonorgestrel is available over-the-counter without a prescription; ulipristal acetate is available only with a prescription.

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Why it's done

Morning-after pills can help prevent pregnancy if you've had unprotected sex — either because you didn't use birth control, you missed a birth control pill, you were sexually assaulted or your method of birth control failed.

Morning-after pills do not end a pregnancy that has implanted. They work primarily by delaying or preventing ovulation.

Keep in mind that the morning-after pill isn't the same as mifepristone (Mifeprex), also known as RU-486 or the abortion pill. This drug terminates an established pregnancy — one in which the fertilized egg has attached to the uterine wall and has begun to develop.

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Emergency contraception, otherwise known as “Plan B” or the “morning after pill”, is a form of birth control you can take after unprotected sex to prevent pregnancy. When taken within 5 days of sexual intercourse, emergency contraception can reduce the chance of getting pregnant by 75-95%; however the sooner it is taken after intercourse, the higher its effectiveness. Ideally, emergency contraception should be taken within 48-72 hours of unprotected sex. 

If you’re looking to get emergency contraception in Singapore, this article will explain what you need to know. However, do take note that emergency contraception is not the same thing as getting an abortion; it will not work if you are already pregnant.

How can I get morning after pills in Singapore?

In Singapore, morning after pills or emergency contraception is only available with a doctor’s prescription (including general practitioners). While most if not all doctors are qualified to prescribe the morning after pill, not every clinic may carry it or have a team that’s familiar with women’s health. It is also important that you speak with a doctor who is able to address your concerns in a judgement-free way. Since it is crucial for the emergency pill to be taken on time and ideally as soon as possible, we suggest going straight to a sexual health clinic. 

Do take note that a woman must consult the doctor herself. If you are seeking emergency contraception on behalf of your partner, she needs to see the doctor herself.

What kind of morning after pills can I get in Singapore?

Postinor

  • Also known as levonorgestrel, sold under the brand name “Plan B” 
  • Contains a synthetic version of progesterone 
  • Stops your ovaries from releasing an egg 
  • Prevents sperm from fertilising any egg you may have already released 
  • Must be taken within 72 hours 
  • 2 tablets taken 12 hours apart 

Ella

  • Thins the uterine lining and prevents a fertilised egg from attaching to the uterus 
  • Must be taken within 5 days from intercourse, although the sooner the better 
  • 1 tablet

You should not take two different morning after pills concurrently or within 5 days from taking the first one. The ingredients in the pills may counteract each other and end up not working entirely. It is also not recommended to take the pill more than once during the same menstrual cycle as its safety and effectiveness have yet to be studied.

Looking to get emergency contraception?
Speak to our female doctor now

Call: (+65) 6226 6442
Whatsapp: (+65) 9886 6442
Email: [email protected]

Can you take a plan b after 24 hours
Can you take a plan b after 24 hours

Will I experience any side effects?

Due to the high levels of hormones in emergency contraception, you may experience some side effects such as: 

  • Nausea and vomiting (in the event that you throw up within 2 hours of taking the pill, you need to take another one)
  • Sore and tender breasts 
  • Irregular bleeding 
  • Headaches 
  • Dizziness 

To reduce nausea from the pill, we recommend taking it after food. 

Some rare but serious side effects include: 

  • Swelling in your face, eyes, lips or tongue
  • Difficulty breathing 
  • Rashes all over your body 

If you experience any of these symptoms, please seek medical advice immediately. 

Who can take the morning after pill?

In Singapore, all women at least 16 years of age can take the morning after pill. However, you may not be suitable to take it if you’re allergic to any of the ingredients in it, have severe asthma or are currently on any medication that may interfere with it, including: 

  • Medication used to treat epilepsy, tuberculosis or HIV
  • Proton pump inhibitors (PPI) like omeprazole which are used to treat excess stomach acid
  • Antibiotics like rifampicin and rifabutin

Please let your doctor know your medical history or if you are on any medication.

How would I know if the pill worked?

The morning after pill should be taken within 5 days after unprotected intercourse; although the earlier it’s taken, the more effective it is. Some common side effects as described above are normal. Your next period may be heavier or lighter or might come a week earlier or later. However, if your period is significantly delayed (does not come within three weeks), you should take a pregnancy test. 

Additionally, if you get bleeding or spotting that lasts longer than a week or develop severe lower abdominal pain 3-5 weeks after taking the pill, please see a doctor.

Want to find out more about emergency contraception?
Speak to our female doctor now

Call: (+65) 6226 6442
Whatsapp: (+65) 9886 6442
Email: [email protected]

How often can I use the morning after pill?

While emergency contraception can be a lifesaver for preventing pregnancy, it should not be used frequently as it may cause your period to be irregular. It is, after all, for emergencies. For long term contraception, you may consider other options like birth control pills or contraceptive patches. They are a lot more effective and not so stressful on the body. 

If you require more information on contraception, feel free to reach out to us and we will do our best to help!

Is Plan B effective after 24 hours?

How effective is emergency contraception? EC is most effective within the first 12-24 hours after unprotected sex. The sooner you start EC after unprotected sex, the better it will work. Depending on the brand of EC, it may be effective up for to 5 days (120 hours) after unprotected sex.

Does Plan B work after 23 hours?

Although EC may be used up to five days after sex, it is less effective when there is a greater time interval between unprotected sex and taking the pill. If taken within 24 hours, there is a 95% chance of preventing a pregnancy. If taken between 25-48 hours, there is an 85% chance.

Can I take Plan B after 20 hours?

You should take the emergency contraception pill as soon as possible; up to 120 hours (5 days) after unprotected sex.

Is Plan B 24 or 72 hours?

How long it's been since you had unprotected sex — you have up to five days after unprotected sex to use emergency contraception. Plan B works better the sooner you take it. Plan B doesn't work nearly as well after three days (72 hours).