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New Carrollton, MD
A 24-year-old female asked:

if your last period was from aug 30th to sep 4th and your next period begins on sep 30th what are the chances of pregnancy if you have sex on sept 17?

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
The usual chances: Ovulation is about 2 weeks before the start of the next period. That means sex at midcycle has the usual chances of pregnancy... around 1 in 4, or 1 in 5. However, asking about "chances" means very little, because it is unpredictable in an individual (so the numbers usually have no meaning) because much of it is just good luck or bad luck.

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Last updated Sep 20, 2015

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