The absence of leukorrhea does not exclude the presence of ovulation. Everyone has different physical conditions and different genetic makeup, so the symptoms that occur during ovulation are not exactly the same. Most women will have stretched leucorrhea during ovulation, but some women have less estrogen production in their own bodies, so they will have less leucorrhea production. Even during ovulation, there will not be an increase in leucorrhea secretion, which is a normal phenomenon. To determine if a woman is ovulating, you need to do an ultrasound to see if there are mature follicles in the ovaries, or you can use ovulation test strips to see if there is a strong positive test. It is not possible to determine whether a woman is ovulating simply by the symptoms she shows, as they can only be used as a reference. If there is a strong positive ovulation test, or if there is a mature follicle detected by ultrasound, it is recommended to arrange intercourse in time for a higher chance of pregnancy.