It is normal for leukorrhea to increase before pregnancy and there is no need to worry too much about it. Vaginal secretions are leucorrhea, which changes with the change of hormone level and menstrual cycle. Before and after menstruation and after pregnancy, it will cause an increase in leucorrhea due to the influence of hormone level. The leucorrhea secreted at this time is thinner, easily stretched, transparent, colorless and odorless, which easily allows sperm to pass through and facilitates conception. If there are abnormalities in the leucorrhea such as itchy vulva, tofu-like or purulent leucorrhea, there may be inflammation in the vagina, which should be treated under the guidance of a doctor. If you are pregnant, you will also have symptoms such as menopause, frequent urination, breast tenderness and darkening of areola. You can go to gynecology department to have blood test for HCG index to confirm the result. Usually, you should pay attention to keep your vulva dry and clean, and wear loose and breathable cotton underwear. If you have abnormal leucorrhea, go to the gynecology department for routine leucorrhea tests.