U.S. doctors online nowAsk doctors free
A 20-year-old female asked:

how long does the effects of postinor2 lasts when experiencing light periods?

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Same amount of time: Plan B, Postinor2, and other brands of this morning-after pill (emergency contraceptive) contain medication that acts with hormonal effects. The medication and its effects stay in the body for a few days, and the number of days is the same no matter where in one's menstrual cycle a person takes the pill. That is because the pill is just a pill, and doesn't know what day of one's cycle today is.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 42-year-old member asked:

Why do some girls get light periods and others get heavy? Seems to be a lot of variation.

1 doctor answer5 doctors weighed in
Dr. Marguerite Barnett
Plastic Surgery 42 years experience
Variety: Variety is the spice of life, they say. If i knew the answer to that question, i'd probably get a nobel prize.
A 42-year-old member asked:

Are scanty periods and hypomenorrhea dangerous?

1 doctor answer4 doctors weighed in
Dr. Michael Sparacino
Family Medicine 37 years experience
No: They're not dangerous but they're not normal eaither. You should see your doctor.
A 37-year-old member asked:

How?Can?You tell?If?You have abnormal heavy or light periods?

1 doctor answer1 doctor weighed in
Dr. PAUL EUN
Dr. PAUL EUNanswered
Obstetrics and Gynecology 38 years experience
How it affects you: Usually, having light periods are not a problem as long as they are regular. Heavy periods are abnormal when they lead to any of the following. Anemia chronic fatigue interferes with your daily activity.
A 41-year-old member asked:

How common are light periods?

1 doctor answer2 doctors weighed in
Dr. Luis Gonzalez
Obstetrics and Gynecology 39 years experience
Not much: A significant change from the regular pattern may need evaluation by your doctor. The presence of light menses while using hormonal birth control is common and could be considered a fringe benefit of these methods.
A 35-year-old female asked:

Why do I have light periods?

1 doctor answer5 doctors weighed in
Dr. Pam Yoder
Specializes in Maternal-Fetal Medicine
Something new?: This may or may not be a problem. What is important to know is the duration of this, history of prior periods in terms of length, amount, frequency and use of medications like oral contraceptives. Once that information is known, an obgyn doctor can better assess the cause and need, if any, to remedy the situation. Feel free to write another questions with a bit more information. Thanks for asking.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Nov 20, 2020

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.