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A 26-year-old female asked:

Does opk detect when the egg has been released or when you should have sex? as i thought u should hav sex prior to ovulation

1 doctor answer1 doctor weighed in
Dr. Neeoo Chin
Fertility Medicine 41 years experience
Pre-ovulation: The lh surge detection kits determine approximately 24 to 48 hours before ovulation. This is the time when intercourse should occur.

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Last updated Oct 23, 2013

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