In terms of fertility, the most common early pregnancy test is the urine pregnancy test kit, which confirms pregnancy by detecting human chorionic gonadotropin (hCG) in the urine. The most common ovulation test in fertility is the ovulation prediction kit based on urine, which helps women determine their ovulation timing by detecting luteinizing hormone (LH) levels. These simple and user-friendly testing products assist couples in better understanding the female fertility cycle and aid in selecting the optimal time for conception.