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Plan b and birth control pills

A 42-year-old member asked:
Dr. Heidi Fowler
Psychiatry 25 years experience
Possibly: Potential side effects w emergency contraception include menstrual flow changes (spotting, bleeding, early or late period).

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A 37-year-old member asked:
Dr. Barbara A Majeroni
Specializes in Family Medicine
Mechanisms differ: Plan b is levonorgestrel. It alters the tubes to prevent passage of the eggs and sperm and prevent fertilization. It also alters the endometrium to pr... Read More
Dr. Paula Hillard
Obstetrics and Gynecology 44 years experience
Not the same: Emergency contraception acts mainly by preventing ovulation, and is intended for only occasional or one-time use. Regular birth control pills also w... Read More
A 25-year-old female asked:
Dr. Darrin Cunningham
Obstetrics and Gynecology 30 years experience
Unknown: When a woman takes hormones to manipulate their period, the result can be totally different from woman to woman. Once you start your cycle, it may... Read More
A 20-year-old female asked:
Dr. Robert Kwok
Pediatrics 33 years experience
Unlikely, but...: Taking Plan B or other emergency contraception pills can alter the timing or the quality of the current menstrual cycle and the upcoming cycle. One sh... Read More
A 20-year-old female asked:
Dr. Heidi Fowler
Psychiatry 25 years experience
Oral contraceptives: when taken consistently and correctly would be sufficient. You don't need to take an emergency contraceptive in this scenariol.
A 17-year-old female asked:
Dr. Mary David
Specializes in Obstetrics and Gynecology
Very unlikely: It is very unlikely that you would get pregnant which is obviously what you are asking taking both Plan B and birth control pills correctly but, if yo... Read More
A 17-year-old female asked:
Dr. Timothy Durkee
Obstetrics and Gynecology 28 years experience
Not really: That close to your menses, being on birth control pills and taking Plan B markedly decreases your chances of being pregnant. If you have any doubts, ... Read More
A 20-year-old female asked:
Dr. Andrew Ho
Psychiatry 30 years experience
No effect: Plan b does not reduce effectiveness of birth control pills.
A 18-year-old female asked:
Dr. John Berryman
Obstetrics and Gynecology 54 years experience
Bcp's/Plan B: "Plan B" is essentially the same as the active pills you take regularly. Plan B is for women who have had "unprotected sex" and are not on bcp's. Un... Read More
A 50-year-old member asked:
Dr. Heidi Fowler
Psychiatry 25 years experience
If your girl friend: Takes her oral contraceptives regularly and took Plan B within 72 hours of sex - the chance of pregnancy would be very low.

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