Under normal circumstances, the amount of leukorrhea will not be very large, the amount of leukorrhea may be pregnant, but not completely sure, a variety of circumstances can cause leukorrhea increase phenomenon, such as ovulation, other gynecological diseases, vaginitis and so on can cause leukorrhea increase. When a woman is pregnant, the level of estrogen and progesterone in her body will rise sharply, which will stimulate the cervix and vaginal wall to secrete a large amount of leukorrhea, so it is true that there will be an increase in leukorrhea after pregnancy, but it is not 100% certain, but you need to go to the hospital to do a blood test for blood HCG or urine HCG test to be able to confirm the diagnosis. Women during ovulation due to changes in hormone levels in the body, the same phenomenon of increased leukorrhea will also occur in some pathological conditions, such as cervicitis, vaginitis, cervical erosion, pelvic inflammatory disease, endometritis and other gynecological diseases can cause leukorrhea, so can only say that leukorrhea increase is likely to be pregnant, but can not be based on the leukorrhea alone to judge that it must be pregnant. If a woman has not had her period for more than a week after her cycle, and there is an increase in leukorrhea, then the possibility of pregnancy is very high. In this case, you can test your urine with a pregnancy test to determine whether you are pregnant or not, and if you are already pregnant, it means that the heavy leukorrhea is caused by pregnancy.