Usually the color of the ovulation test paper shows a red bar, which is a negative result. Ovulation tests are usually not necessary after successful implantation, but should be used for early pregnancy tests. The test is to detect the level of luteinizing hormone and to determine whether a woman is ovulating or not. Generally, the color of ovulation test paper should be a red bar, mostly in the control line area or the test line is shallower than the control line, which is a negative result, mainly because the woman will not continue to ovulate after implantation. Therefore, the use of ovulation test paper at this time does not have any meaning. Under normal circumstances, after successful implantation, we need to use early pregnancy test paper to determine whether the woman is pregnant by detecting the concentration of human chorionic gonadotropin in the body. If there is a red line in the control area, it is suspected that she is not pregnant, and if there is a red line in both the control area and the detection area, it is considered that she may have been pregnant. To summarize, it is recommended that women who have successfully implanted adopt the correct and appropriate way to carry out the test, and if there is any doubt, they should go to the hospital and follow the doctor’s advice.