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Doctor insights on: Calculate Ovulation After Morning After Pills

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Are there ways to find out when ovulation happens after taking morning after pills?

Are there ways to find out when ovulation happens after taking morning after pills?

Not really: The idea of emergency contraception is to delay or prevent ovulation. There is not a way to determine when exactly it would occur after using these pills. If you do not want to get pregnant consider starting birth control. Then you will not have to worry about these scares ...Read more

Dr. Adam Levy
634 Doctors shared insights

Morning After Pill (Definition)

Emergency contraception is a method to prevent pregnancy in women who have had unprotected sex, or for whom a barrier method has failed (slipped condom, diaphragm, or cervical cap, or broken condom). Emergency contraception medicine is not the same ...Read more


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How good is the morning after pill during ovulation?

How good is the morning after pill during ovulation?

Up to 95%: If a woman takes the morning after pill within 24 hours of intercourse it is up to 95% effective. If she takes it within 72 hours of intercourse it is up to 89% effective. The sooner after intercourse the pill is taken the more effective it is, even during ovulation time. However being on bcp or Implanon or iud is even more effective, so it's helpful to consider a from of birth control. ...Read more

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I think I have ovulated will the morning after pill work?

I think I have ovulated will the morning after pill work?

Yes, it can be used: At any time during your menstrual cycle. Plan b one-step can reduce your risk of pregnancy by up to 95% if used within 24 hours of sex.
According to planned parenthood when Plan B is taken 48 to 72 hours after intercourse the efficacy is 61%. ...Read more

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How effective is the morning after pill doesn't work if you're ovulating?

Emergency: Contraception can be used at any time during the menstrual cycle. Plan b one-step can reduce your risk of pregnancy by up to 95% if used within 24 hours of sex.
According to planned parenthood when Plan B is taken 48 to 72 hours after intercourse the efficacy is 61%. ...Read more

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If I take the morning after pill on the night before ovulation will it work.

If I take the morning after pill on the night before ovulation will it work.

Maybe: It is unclear from your question whether you are taking it before or after intercourse. It is not meant for routine contraceptive use which is why it is called emergency contraception. It is meant for use after an unexpected failure of contraception and is 95% effective if taken within 24 hr. After intercourse even at mid-cycle. This is less than the effectiveness of other contraceptives. Be safe! ...Read more

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Does the morning after pill change your ovulation date if you take it before?

Does the morning after pill change your ovulation date if you take it before?

Morning after pill: The morning after pill contains hormones, and in fact could change your cycle even if you haven't taken it before. ...Read more

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Is it true if I took the morning after pill around when im ovulating or just after it won't work?

Is it true if I took the morning after pill around when im ovulating or just after it won't work?

No: Not for sure because you never know if you have ovulated or not. If you have already ovulated then it might not work but if you have not ovulated then there is a good chance it will. For the future try to use birth control prior as it sure is most reliable! ...Read more

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Will the morning after pill be effective after taking it 55 hours later, and is almost certain that they are ovulating?

Should be: The morning after pill is effective up to 72 hours after intercourse. It prevents implantation of a potentially fertilized egg into the uterine wall. The sooner after intercourse the higher the chances of preventing pregnancy. ...Read more

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Why can the morning after pill make your next 2 cycles shorter, like 10-15 days (normally they 27)? Does it mean you didn't have ovulation?

Why can the morning after pill make your next 2 cycles shorter, like 10-15 days (normally they 27)? Does it mean you didn't have ovulation?

Abnormal bleeding: Emergency contraception is used after unprotected intercourse to decrease the risk of pregnancy by about 70%. It is a high dose of birth control to disrupt the hormonal patterns to delay or prevent ovulation. Abnormal bleeding or an abnormal cycle after use is common. Check preg test in 10 days. ...Read more

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Does Aftera morning after pill works during ovulation?

Does Aftera morning after pill works during ovulation?

Yes: Plan B can work in one of three ways depending on where you are in your cycle. It can prevent or delay ovulation, can interfere with the fertilization of the egg or may prevent implantation by altering the lining of the uterus. If you take Plan B One-Step within 24 hours, it is about 95% effective. ...Read more

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My husband claimed that the morning after pill would simply prevent ovulation - is this true?

My husband claimed that the morning after pill would simply prevent ovulation - is this true?

No: That is true, but not the only reason the morning after pill works. There are effects on the uterus and the fallopian tubes, as well as sperm. ...Read more

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I took the morning after pill 36 hours after intercouse, and during my first day of ovulation. Could the pill have been taken too late?

I took the morning after pill 36 hours after intercouse, and during my first day of ovulation. Could the pill have been taken too late?

Unlikely: If you took the morning after pill within 72 hours of intercourse, it is quite effective in preventing pregnancy. You are well within that time frame. ...Read more

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I took the morning after pill 24hrs ago. Just wondering how long it will mess with my cycles for and how soon after taking it will I resume ovulation?

Difficult to say: It won't necessarily do anything to your cycle, but many women do find their next period to be a bit off after using Plan B. That can mean unusually light, perhaps a little early, perhaps a little late, maybe spotting for a day then it stops then comes back after a day. Everyone is different, but you should assume yourself to be as fertile as always going forward. Usually the 2nd period is normal ...Read more

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How long would levonelle (the morning after pill) delay ovulation?

How long would levonelle (the morning after pill) delay ovulation?

It depends!: The effectiveness of the morning after pill is related to a delay in ovulation produced by the burst of Progesterone that you get from this medication. I would say, in general, that I would not expect it to delay your cycle for more than 1-2 weeks. How long it delays ovulation is similar, but likely depends on whether you took it before, or after you ovulated. Remember to take a pregnancy test! ...Read more

Dr. Philip Chenette
1,829 Doctors shared insights

Ovulation (Definition)

Ovulation is the act of the ovary releasing the egg after it has been hormonally prepared, to be ...Read more