Ovulation test papers that are dark again after a few hours are generally normal. If you want to test for ovulation with ovulation test strips, you need to observe the results within 5 minutes after the test. If the ovulation test strips are left in place for a long period of time, it may lead to abnormal results, and therefore the symptom of a darker test after a few hours may occur. If the test is retested after a few hours, it usually means that ovulation is imminent. Normally, the ovulation test paper test will show a color change during ovulation, and you need to take the test regularly every day according to your doctor’s instruction and observe the change of the ovulation test paper. If there has been ovulation, it is recommended to have intercourse in time, which can improve the probability of conception, but it is best not to have intercourse too often during the ovulation period, and it is better to have intercourse every other day to improve the quality of fertilized eggs.