When you have increased leucorrhea in the fifth month of pregnancy, you should first pay attention to see if there is any odor and vulvar itching. If the leukorrhea increases and has a bad smell, it indicates an inflammatory infection. This symptom can occur when you have vaginitis, which is classified as trichomoniasis or mycotic vaginitis. If you have vaginitis during pregnancy, you should take topical medication that has less side effects and does not affect the fetus. You can use nifurtimox suppositories to treat vaginally. If you’re five months pregnant and have increased leukorrhea without odor, consider that it’s caused by cold or eating cold food, or it’s related to the hormonal secretion in your body. You should try to keep warm, don’t eat cold food, pay attention to hygiene and cleaning.