1. Collect urine in a clean and dry container. Do not use first morning urine. The optimal time to collect urine is between 10:00 AM and 8:00 PM. Try to use urine samples at the same time each day. Avoid excessive fluid intake 2 hours before collecting urine. 2. Immerse the test strip into the urine up to the MAX mark line for about three seconds, then remove and lay flat. Read results within 10 to 20 minutes. Do not interpret results after 30 minutes. Normal women ovulate monthly. When an egg matures in the ovary, it is released and travels to the uterus through the fallopian tubes. Pregnancy occurs when sperm in the fallopian tube fertilizes the egg. Sperm can survive in the female reproductive tract for approximately 24 to 72 hours, while the egg remains viable for fertilization for about 24 to 36 hours after ovulation. Women should determine their menstrual cycle length before testing. A cycle is counted from the first day of menstruation to the day before the next period begins. Most women ovulate around 14 days before the start of the next period. The fertile window includes the 2-3 days before ovulation and 1-2 days after, making it the most likely time for conception. Regular testing is recommended once the testing phase begins. Model Number: Ovulation Test Strip Item Type: Feminine Hygiene Stage: Pre-pregnancy Fragrance Type: No fragrance Packaging: Aluminum foil bag with desiccant for moisture protection Color: Pink Material: Aluminum bag Size: 10.5 x 5.5 cm Package Contents: 1 pack x (90 pieces) Ovulation Test Strip Note: The package includes only the items listed above. Light reflection and differences in display screens may cause slight variations in color representation. Measurement error allowance is +/- 1-3 cm.