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7 Day Test Kit. Predicts the 2 most fertile days. Exceptional value! Wide tip design. Easy-to-read. Answer Quick & Simple One-Step Ovulation Test: Contains test sticks for 7 days of testing. Easier to use wide tip design. Why Test for LH Surge? Your two most fertile days begin with the LH surge. Therefore, you are most likely to become pregnant if you have intercourse within 24-36 hours after you detect you LH surge. Steps for Use: Place absorbent tip in urine stream for 5 seconds. Results in 5 minutes. English and Spanish instructions inside. Over 98% accurate in laboratory testing. LH Surge: The presence of two similar purple lines means you have detected you LH Surge. The test line may be darker then the reference line. No LH Surge: One line, or two lines with the test line lighter than the reference line, indicates that you have not yet reached you LH surge. This test kit contains test sticks for 7 days of testing and instructions for use. However, since menstrual cycles can be irregular, if 7 days of testing does not detect your hormone surge, you may continue testing with a second Answer Quick & Simple One-Step Ovulation Test Kit. For in-vitro diagnostic use. Not to be taken internally.