The color of the test paper may deepen after 7 days, but not absolutely will deepen, or may always be gray state. Early pregnancy test paper with gray marks does not indicate that women are pregnant, may be too early to detect the time, the test method is not correct, women are not pregnant a manifestation, you can again after 7 days to re-take the morning urine test again, pregnancy in the case of early pregnancy test paper test line color will gradually deepen, positive results, accompanied by menopause manifestations, indicating that the possibility of women are pregnant. The gray mark on the pregnancy test paper does not mean anything. Early pregnancy test paper detection time should not be too early, try to wait for 14 days after the same room to go to the pregnancy test, at first try to choose the morning urine test, the HCG concentration in the urine is relatively high, the test out of the result is more accurate. Women can also go directly to the hospital to draw blood to check HCG, the accuracy of the test is higher.