If the early pregnancy test paper becomes lighter and lighter, then it may be a biochemical pregnancy or a miscarriage that has already occurred, which is why the HCG concentration in the body is getting lower and lower, so it becomes lighter and lighter. If the ovulation test becomes lighter and lighter, then it is possible that the ovulation has already occurred, and that is why there is a (+-) situation. Ovulation test paper test is to detect the luteinizing hormone in the urine, if the value of luteinizing hormone reaches a peak, there will be a strong (+), the clinical significance is that after the strong (+) appears about 24-48h ovulation. Generally, after ovulation, ovulation test paper may change to (+-), so the more you measure the more shallow, is a normal phenomenon do not worry.