10 days after the ovulation period, the ovulation test paper is positive, which means that fertilization may be imminent. Although not all fertilization occurs during ovulation, it is an important period because it is when the egg in the female reproductive tract has a chance to meet sperm.

If a woman is not fertilized during this period, she may need to wait for a while until her reproductive tract opens up again and the egg and sperm meet again. Generally speaking, women only release one egg per month, and fertilization takes 2-3 days. Therefore, if a woman does not fertilize during this period, she can try the test again at the same time the next month.

While using an ovulation test strip can predict whether fertilization is imminent, it does not guarantee pregnancy. Changes in the female reproductive tract and physiological conditions (such as health, age, medication use, etc.) may affect test results. Therefore, if a woman does not fertilize during this period, she should follow her doctor's advice and continue to try to find a chance of pregnancy.

To sum up, when a woman’s test result is positive 10 days after her ovulation period, she has probably been fertilized. However, this does not mean pregnancy is guaranteed. If a woman does not fertilize during this period, she should follow her doctor's advice and continue trying to find a chance of pregnancy.