First Response Fertile Window Ovulation Test
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 your LH surge. The presence of two similar pink lines means you have detected your LH surge. The test line may be darker than the 4reference line. The presence of one line, or two lines with the test line lighter than the reference line, indicates that you have not yet reached your LH surge.
- 7 Ovulation Tests PLUS 1 Pregnancy Test
- Over 99% accurate
- Predicts your most important, fertile days
- Early Result Pregnancy Test can tell you if you are pregnant 6 days sooner than your missed period