4 doctors weighed in:

Once you start to ovulate how long do u have until it's not able to be fertallized?

4 doctors weighed in
Dr. Gerard Honore
Fertility Medicine
2 doctors agree

In brief: 24 hours or less

An oocyte can be fertilized for a maximum of 24 hours after ovulation, many believe only 10-12 hours.
Technically that's not quite the same as saying 24 hours after detection of an lh surge. It's much shorter than most realize, the idea of "4-5 fertile days" is not biologically correct at all, it's a simplification for timing strategy at home.

In brief: 24 hours or less

An oocyte can be fertilized for a maximum of 24 hours after ovulation, many believe only 10-12 hours.
Technically that's not quite the same as saying 24 hours after detection of an lh surge. It's much shorter than most realize, the idea of "4-5 fertile days" is not biologically correct at all, it's a simplification for timing strategy at home.
Dr. Gerard Honore
Dr. Gerard Honore
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1 comment
Dr. Gerard Honore
24 hours or more is dogma and conventional wisdom and not science. Ask any Repro Endo, or any embryologist. Look at the bench research, the shorter answer is correct :).
Dr. Ron Eaker
Obstetrics & Gynecology
1 doctor agrees

In brief: Varies

Viability of the egg varies due to many factors, but most estimate about a 24-48 hour window.

In brief: Varies

Viability of the egg varies due to many factors, but most estimate about a 24-48 hour window.
Dr. Ron Eaker
Dr. Ron Eaker
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