Nowadays, many people like to use ovulation test paper to detect ovulation, ovulation test paper is more convenient, the results come out in time, it is easy to read and understand, do not need much rich knowledge, and most of the cases are more accurate. But is ovulation test paper really accurate? Can I rely solely on ovulation test strips to detect ovulation? Some people also ask, what’s wrong with me showing ovulation several days in a row? Let’s take a look at the follicular development and hormonal changes that occur during each menstrual cycle under normal circumstances. As we’ve described before, the hormone (luteinizing hormone LH) represented by the blue line in the chart is the hormone that ovulation test strips mainly detect in the urine. As you can see in the figure, the blue line will appear a peak during ovulation, in normal regular ovulation in the population, ovulation test paper can detect this peak, can accurately indicate ovulation, so the arrangement of coitus around this period of time the chances of conception will be greater. However, this LH peak will normally remain for 24-48 hours, but the length of time it appears and lasts varies from person to person, and the metabolic time will vary, so even if the follicle is normally discharged, sometimes LH can be detected in the urine for 72 hours or even longer, and there is no need to worry about it too much. But still need to emphasize is that ovulation test paper response is with the follicle development and discharge caused by hormonal changes, but can not indicate that the follicle discharge, previously introduced polycystic ovary syndrome may occur ovulation test paper has been weakly positive, so ultrasound monitoring is always the most accurate method, if you are really unsure, you should be timely in the professional clinic evaluation, I believe that the doctor will certainly give a suitable for you to monitor the program. I believe your doctor will give you a suitable program for ovulation monitoring.