The presence of a streak of leucorrhea followed by ovulation is considered to be an indication of ovulation and does not directly indicate the presence of pregnancy. This phenomenon indicates that ovulation may occur in the next two days, when the chances of conception are relatively high. During ovulation, the hormonal secretion in the body changes and the secretion of cervical mucus gradually increases, so the vaginal discharge will also increase accordingly. The leucorrhea may change at this time, being clear, transparent and viscous, which can play a certain role in lubrication, thus allowing sperm to enter the vagina more quickly to complete the entire conception process. This is a common symptom during ovulation, but not all women experience leucorrhea. It is inaccurate to determine whether you are pregnant or not by the symptoms of leucorrhea. It is better to determine whether you are pregnant by urine test or blood test.