OvuPlan 10 Day Pregnancy Planning Kit helps you predict the 2 days each month when you are most fertile and helps you to increase your chances of becoming pregnant. This test will show if ovulation will occur within the next 24 to 36 hours, the time during which you are most likely to become pregnant. OvuPlan can help signal when you are most likely to be ovulating by detecting an LH surge. Most women can detect their LH surge within 8-10 days of daily testing with >99% accuracy.