A member asked:

Is conception the actual day you conceived or the day the sperms met the egg? how many days can conception be off by?

A doctor has provided 1 answer
Dr. Craig Smith answered

Specializes in Urology

Penetration of egg: The sperm has to penetrate the egg or order to begin the potential conception. The sperm have viability of about 1 hour in the vagina and up to 3-4 days once penetrating through the cervix.

Answered 2/28/2014

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