1. Collect urine in a clean and dry container. Do not use first morning urine. The best time to collect urine is between 10:00 AM and 8:00 PM. Try to use the urine sample at the same time each day. Reduce 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 for 1020 minutes. Read the result within 30 minutes. Normal women ovulate monthly. When an egg matures in the ovary, it is released and travels through the fallopian tube toward the uterus. Pregnancy occurs when sperm fertilizes the egg in the fallopian tube. Sperm can survive in the female reproductive tract for 2472 hours, while the egg remains viable for approximately 2436 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 23 days before ovulation and the 12 days after, making conception most likely during this 45 day period. Regular testing is recommended once the test cycle begins. Model Number: Ovulation Test Strip Item Type: Feminine Hygiene Stage: Pre-pregnancy Fragrance Type: No fragrance Packaging: Aluminum foil bag (includes 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 display differences may cause slight variations between the product color in images and the actual product. Measurement error allowance is +/- 13 cm.