Charlotte, NC
A 18-year-old female asked:
how long is ovulation delayed after taking plan b ?
1 doctor answer • 1 doctor weighed in
Dr. Robert Kwok answered
Pediatrics 33 years experience
Hard to guess: When Plan B blocks an ovulation, one cannot accurately predict the next date that ovulation will occur, but cycles should normalize after another monthly cycle. The simple act of taking Plan B is an enormously loud voice saying: use reliable primary (not back-up) contraception. Fortunately, that is easy to do in most cases, and can eliminate any future need for Plan B.
91 views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:
Similar questions
A 38-year-old member asked:
What is the effectiveness of Plan B if taken during or once ovulation has occured?
1 doctor answer • 2 doctors weighed in
Dr. Heidi Fowler answered
Psychiatry 25 years experience
It is effective if: Taken within 72 hours of sexual intercourse. Plan b one-step can reduce your risk of pregnancy by up to 95% is used within 24 hours of sex. It is normally effective whether you are ovulating or not.
4976 views
A 49-year-old member asked:
Can Plan B start new ovulation cycle?
1 doctor answer • 2 doctors weighed in
Dr. Jeff Livingston answered
Obstetrics and Gynecology 22 years experience
Disrupts not restart: Plan b essentially disrupts the normal menstrual cycle by blocking or delaying ovulation. Irregular bleeding after taking Plan B is not rare. Always check a pregnancy test after using Plan B and see a doctor to start a better form of birth control.
4968 views
A 44-year-old member asked:
If ovulating, will Plan B still work?
2 doctor answers • 5 doctors weighed in
Dr. Karen Jones answered
Obstetrics and Gynecology 37 years experience
Yes: Plan b will still work even if it is taken at the time of ovulation. Remember Plan B is most effective the sooner it is taken to the time of sex. Effectiveness goes down after 72 hours.
4868 views
A 22-year-old female asked:
If i spot after taking Plan B is it because its delaying my ovulation?
1 doctor answer • 2 doctors weighed in
Dr. Heidi Fowler answered
Psychiatry 25 years experience
Plan B: Plan b is used for unprotected sex with contraceptive failure. It works w female hormones. Plan b can prevent ovary from releasing an egg, thickens cervical mucus which makes it harder for the sperm to reach egg & thins the lining of the uterus to prevent implantation. Emergency contraception symptoms can include spotting or bleeding, changes in menstrual flow or your period may be late or early.
4862 views
Cheltenham, PA
A 17-year-old female asked:
Is Plan B effective if you already or are ovulating. (if taken withing 72hrs)?
2 doctor answers • 6 doctors weighed in
Dr. Timothy Raichle answered
Obstetrics and Gynecology 22 years experience
Yes: It is still effective and must be used within 72 hours of unprotected intercourse. Expect that it will cause some breakthrough bleeding and a delay in your next cycle. Also, check a pregnancy test in about 2 weeks.
4317 views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:
Last updated Jun 9, 2020
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits
$15 per month
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.