🔵Ovulation predictor kits are commercially available at-home tests that can detect your LH (luteinizing hormone) surge, which happens about 36 hours prior to ovulation.
🔵The kits work by measuring your urine concentration of LH, which can be detected about 12 hours after the LH surge. This can be helpful in confirming that you are about to ovulate and helping you time intercourse.
🔵However, the fertile window ends at ovulation, so hopefully you have been having intercourse in the days prior to your LH surge as well.
🔵Most women begin testing 2 days prior to their expected surge, or every 1-2 days if they have irregular periods. It is very important to follow the exact instructions of the kit you are using, as they vary widely in how and when to use them.
🔵There is some evidence that using these kits may improve your likelihood of conceiving each month, especially in couples with irregular periods or who have intercourse infrequently, but they are not a must, especially in those with regular cycles.