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chance of pregnancy on birth control pills and had sex on period

A 34-year-old female asked:
Dr. Jalal Zuberi
45 years experience Pediatrics
Very little: Birth control pills if taken according to instructions, are very effective way to prevent pregnancy. If you were not on BCPs sex after the so called s ... Read More

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A 18-year-old female asked:
Dr. Michael Sparacino
37 years experience Family Medicine
Possibly: Pregnancy is always a possibility. Home pregnancy tests become positive at about the time you'd be one week late. Perform one then and repeat in a w ... Read More
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A 18-year-old female asked:
Dr. James Lin
A Verified Doctor answered
A US doctor answered Learn more
Here are some ...: Slight deviated timing in taking BC pills should not affect its intended contraception. Sexual intercourse 2 days after period should not induce pregn ... Read More
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A 19-year-old female asked:
Dr. John Moranville
36 years experience Psychiatry
Recommendations: i am a psychiatrist so your question is out of my league, but I will refer you to ano OB/GYN doc Dr on hHealthtap I recommend. His profile shows exp ... Read More
A 24-year-old female asked:
Dr. Cory Annis
29 years experience Internal Medicine and Pediatrics
Minimal: Assuming that you've taken your pills correctly all along then it's the same as birth control effectiveness in general. the chance is less than 3%
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A 25-year-old female asked:
Dr. Robert Kwok
33 years experience Pediatrics
The pills work: If a woman is consistently taking birth control pills (same time, every day) and has been doing fine on them for more than a month, she is protected a ... Read More
A 32-year-old member asked:
Dr. John Berryman
54 years experience Obstetrics and Gynecology
Fertile window: When taking oral contraceptives, there is no "fertile window" since you do not ovulate with combination pills, and if taking progesterone only pills, ... Read More
A 24-year-old female asked:
Dr. Douglas Lawson
28 years experience Obstetrics and Gynecology
Probably ok: I usually recommend a condom back up when you change birth control. I would do a home pregnancy test just to be safe, but you're likely ok.
A female asked:
Dr. Leila Hashemi
21 years experience Internal Medicine
Not likely: a day before period is out of fertile period and the risk of pregnancy is very low.

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