LH ovulation test is a new contraception product ,which is made on the rule of hormone contraception change in the female menstruation cycle, and is qualitative immunoassays for detecting elevated levels of Latinizing Hormone (LH) in urine, The test can exactly predict the ovulation period ,so the couple can efficiently master the best pregnancy time and make the ovum and semen combine at the ideal time to get the purpose of pregnancy and better birth.