Emergency Contraception

Yuzpe Method Emergency Contraception

At A Glance:

  • Contraceptive pills can be used as emergency contraception after unprotected sex to decrease the chances of pregnancy.
  • Should only be used after unprotected sex, if another contraceptive method failed, or if no contraception was used.
  • Pills can be up to 88% effective if taken within 72 hours (three days) after unprotected sex. The sooner, the better.
  • The Yuzpe Method is not guaranteed as effective as the daily intake of pills as a regular contraceptive method.

What Is It

Emergency contraception lessens the chances of a woman getting pregnant if taken within the first few days after unprotected sex. It should be taken as a last resort when other contraceptive methods failed or were not used during unplanned sex.

You may want to use it if:

  • No contraceptive was used
  • A contraceptive was used incorrectly
  • A contraceptive was used correctly but was immediately observed to have failed
  • The condom broke, slipped, or was used incorrectly
  • Three or more combined oral contraceptive pills were consecutively missed
  • More than three hours have passed since the usual time of intake of the progestin-only pill
  • You are more than four weeks late for the depo injectable shot
  • Withdrawal failed and ejaculation occured in the vagina or on external genitalia

Emergency contraceptive pills are also called “morning after pills,” which gives the wrong impression that they should be taken the morning after unprotected sex, when in fact, they can already be taken as soon as possible without having to wait for the morning after.

The Yuzpe Method

In the Philippines, the daily oral contraceptive pills available can be used as emergency contraception through a specific method. The Yuzpe Method prevents pregnancy before it happens; it’s a backup plan, and should not be done regularly. If you are interested in taking oral contraceptive pills as a regular method of contraception, consult your healthcare provider to know more. It is also strongly advised to consult a healthcare provider when using the Yuzpe Method.

How It Works

Pregnancy doesn’t happen immediately after sex, which is why preventing it after unprotected sex is still possible. Take note: it can take up to seven days for the sperm cell and egg cell to meet after sex.

Pills prevent the sperm cell and egg cell from meeting and result in pregnancy by releasing a large dosage of the hormones estrogen and progestin in the body. Through this, the egg cell is stopped or delayed from leaving the ovary and traveling to the uterus for fertilization.

The Yuzpe Method lessens the chances of pregnancy to happen if taken within the first few days after unprotected sex; however, how much the chances are reduced depends on how soon the pills are taken after the incident, and at what stage the woman’s menstrual cycle is already when she takes it. The chances of getting pregnant are higher when the woman had unprotected sex during the 2nd or 3rd week of her menstrual cycle; this makes the effectiveness rate not absolute. It’s always better to use a regular form of contraception, such as a condom or the daily oral contraceptive pills.

How To Use It

Do the Yuzpe Method as soon as possible after unprotected sex. Although it can reduce the risk of pregnancy if used within 72 hours after the incident, taking it sooner makes it more effective.

Take four (4) Ethinyl Estradiol 30mcg/Levonorgestrel 150mcg, Ethinyl Estradiol 30mcg/Levonorgestrel 125mcg, or Ethinyl Estradiol 30mcg/Norgestrel 300mcg pills as soon as possible. Follow this with another dose of four (4) pills 12 hours later. You should be able to take a total of eight (8) pills.

Source: Family Planning Handbook 2018 & MIMS

If vomiting occurs within 2 hours after taking either of the doses, you need to repeat that dose. Remember, the sooner the pills are taken, the better.

It’s normal for your next period to be different from normal after taking emergency contraception.

  • It may come earlier or later than usual
  • It may be heavier, lighter, more spotty, the same as usual

You may also feel dizzy and nauseous after taking the pills.

The Positives

  • Pregnancy can be prevented after unprotected, unplanned or unsolicited sex.
  • Offers more protection and peace of mind than doing nothing.
  • Easy to use.

The Negatives

  • Can cause nausea, fatigue, an upset stomach and vomiting
  • Can cause breast tenderness, irregular bleeding, dizziness, headaches (short-term), and temporary changes to the menstrual cycle
  • The chance of preventing pregnancy is higher the closer the Yuzpe Method is used in the time after unprotected sex. Generally, within 72 hours after is the effective period. Beyond that, it cannot guarantee effective protection.


Department of Health. The Philippine Clinical Standards Manual on Family Planning (2014 Edition). Manila, Philippines: DOH. 2014. Pp231-239



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817 thoughts on “Emergency Contraception

  1. Hello po. I had unprotected sex last april 8 and based po sa ovulation ko is fertile po ako ng time na yun. 7hrs after sex, nag take po ako ng trust pill 4pcs tas 4pcs naman the next 12hrs. And the remaining pills tinake ko parin but not regularly like on the same time hanggang sa maubos. But still pinagpatuloy parin namin yung unprotected sex hanggang aprl 22. Supposedly ang regular mens ko ay nasa 25th of the month pero delay na po ako ng 2weeks. 2twice na din po ako ng ka spotting last apr 25 and May 3. My question is lang po is nasa high chance of pregnancy padin po ba ako?

  2. Hello! Clarify ko lang po ito – “If vomiting occurs within 2 hours after taking either of the doses, you need to repeat that dose.” So ibig sabihin po, kapag nagsuka within 2 hours after ng first dose (4 pills), another 4 pills po ulit kailangan inumin? So magiging 12 pills in total na po kasama yung another 4 pills sa second dose? Thank you!

  3. Hi po may ask lang po sana ako, yesterday po arount 4pm may nangyare po samin unprotected sex..
    Nabasa kopo itong yuzpe method,
    ginawa kopo uminom po ako ngayung 12:20pm ng 4 na trust pills..
    Then mamaya po ulit 12:20am apat po ulit..
    Ask ko lang po yung remaining na pills po ba pwede ko nalang po inumin? At anong oras po kaya yun.. thanks po

    1. Hi, Jill! Tulad nga po ng inyong nabasa, dalawang beses niyo lang po kailangan uminom ng 4 na pills. Kapag nainom na po ang dalawang dose, natapos niyo na po ang Yuzpe Method at hindi na kailangan inumin ang natitirang pills maliban na lang kung nais itong gamitin bilang regular contraception.

  4. Hi! We had unprotected sex last april 27, and immediately took 1 trust pill at 7pm that day, only one pill. and then 1 again the next day (7 Am) Did this for 5 days now. am i still protected? :/ I had late discovery about this one time drinking of 4 pills 12 hours apart.

  5. i did yuzpe method apr 17 1pm , my last mens was apr 10-14 and we did unprotected sex apr 16 around 1 am. tin-nake ko po is lady pills. and then around apr 26 naka experience po ko ng bleeding. is it normal po?

    im just browsing comments here so i can ease my mind. hahahaha nagg ooverthink na kasi ako eh

  6. Hello! Is there a chance na hindi po mag bleed days after matapos gawin yung Yuzpe Method? Thank you!

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