The absence of pulling phenomenon is not necessarily the absence of ovulation, ovulation is not entirely from the pulling to determine, no pulling-like discharge may also exist in the case of ovulation. However, most of the ovulation will appear like a silk discharge, milky white transparent, ovulation without silk, also belong to the normal, also has the conditions of fertilization, as long as there is no vulvar itching, do not need to deal with. Ovulation is a normal physiological process in women, most of the ovulation occurs in the middle of the two menstrual periods, ovulation due to changes in hormone secretion levels, there will be a vaginal secretion more than usual, for the transparent filaments, not accompanied by vulvar itching and secretion odor, etc., and some women also have varying degrees of pain in the lower abdomen, lumbar acidity, a small amount of brown secretion, etc., is the performance of the ovulation period. To determine whether ovulation has occurred, ultrasound monitoring is required, which is performed on the 10th day of menstruation to monitor follicular development and ovulation. Women who are preparing for ovulation can have intercourse during ovulation, and if both partners have normal reproductive function, pregnancy can usually occur after one intercourse during ovulation. To determine if ovulation has occurred, it is recommended to seek medical attention for ultrasound monitoring.