Ovulation test paper does not have strong yang how to return a responsibility

Ovulation test paper is a method to detect ovulation, is an indirect method, normal is to determine the luteinizing hormone in the body. Generally speaking, luteinizing hormone has a gradually increasing and gradually decreasing trend, if the detection method is not correct, you can not find luteinizing hormone content peak, naturally there is no strong positive performance. Generally speaking, if menstruation is regular in the past, once every 28 days, the time of measurement is often started on the ninth day of menstruation, measured once a day, observe the changes of the test paper, if the test paper shows strong yang, that is, luteinizing hormone content reaches its peak, it has the conditions of ovulation, at this time luteinizing hormone will slowly decline, from strong to weak, indicating that ovulation has been completed. If the timing of the test is not right, there is no strong positive change in the test paper, and the test is performed after ovulation is expected, it will often not show strong positive. Of course, if there is no ovulation at all, it will not show strong positive performance.