It is possible for a woman to have pink vaginal fluid to be pregnant, but it depends on the specific time and situation. There are many factors that can cause vaginal bleeding: 1. If vaginal bleeding occurs in the middle of menstruation, it may be due to ovulation, after the ovaries have discharged their eggs, due to the temporary reduction of estrogen secretion causing a small amount of endometrial shedding, a small amount of bleeding symptoms, which is ovulatory bleeding, is a normal physiological phenomenon does not require special treatment, usually about 2-3 days to end naturally. 2.