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If i took plan b and then a couple hours later had unprotected sex will it still work

A 24-year-old female asked:
Dr. Linda Gromko
Family Medicine 48 years experience
Hopefully...: Ovulation time, of course, is 'prime time' for getting pregnant! Plan B will hopefully work, but get a pregnancy test if you do not get a normal perio... Read More

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A 19-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Unlikely: The longer after 48 hrs you take the Plan B pill, the less likely it will work.
A 30-year-old female asked:
Dr. Alan Patterson
Obstetrics and Gynecology 42 years experience
Should work: If you take the entire Plan B within 72 hrs, you should get a period at the normal time, if u don't then see your gyn for a blood preg tets.
Dr. Heidi Fowler
Psychiatry 25 years experience
Plan B: Plan B One-Step can reduce your risk of pregnancy by up to 95% if used within 24 hours of sex. If taken within 72 hours it can reduce risk of pregnan... Read More
A 16-year-old female asked:
Dr. Jeff Livingston
Obstetrics and Gynecology 22 years experience
Plan B effect: Plan b is essentially taking a high dose of birth control to disrupt the hormonal patterns in your body to delay or present ovulation. An abnormal per... Read More
A female asked:
Dr. Bryan Kurtz
A Verified Doctoranswered
A US doctor answeredLearn more
It should: It should work, but it sounds like you need to think about a better form of birth control.
A 18-year-old female asked:
Dr. Lauren Bickel
Specializes in Family Medicine
It might: Plan B is a progesterone agent which usually works by preventing ovulation so no egg is available to be fertilized by the sperm, or by preventing impl... Read More
A 25-year-old female asked:
Dr. Clarene Cress
Specializes in Pediatrics
You should be okay: Varying the time of birth control dose by an hour or so daily is not significant enough to alter its effectiveness, as long as you continue to take yo... Read More
A 18-year-old female asked:
Dr. John Berryman
Obstetrics and Gynecology 54 years experience
"Plan B" ?'s: Although "Plan B" can protect from pregnancy, it is not 100% certain. The Plan B you took on Friday night would "protect" against pregnancy for both "... Read More
A 19-year-old female asked:
Dr. J Ricardo Loret De Mola
Fertility Medicine 33 years experience
Yes: As long as you take Plan B within 72 hrs of unprotected sex you are ok, but it would be better for you to use a more reliable form of contraception (c... Read More
A 22-year-old female asked:
Dr. Robert Killian
General Practice 28 years experience
Take Plan B: Yes. Since you did not protect against unwanted pregnancy you should take plan b. Now. Going forward it is very simple to avoid unwanted pregnancies.... Read More

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

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