faf672b3_ng_to_Conceive___Pregnancy_org__Description
[Test] Ovulation Prediction Kits [Description] 
Unlike BBT Charting, Ovulation kits can detect LH in your urine before ovulation has occurred. You ovulate usually 12 to 36 hours after the test shows positive for LH surge. Many with infertility problems or irregular cycles benefit from these kits, as they can pinpoint exactly when they ovulate before it happens.
Ovulation | Trying to Conceive | Pregnancy.org
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