A week after conception, some women notice slight spotting from the genital tract. They can be confused with scanty menstrual bleeding, but these discharges differ from menstruation in a lighter shade. They occur just at the moment when the fertilized egg clings to the wall of the uterus, but they do not last long at all. Sometimes women observe quite thick yellowish discharge. So at the beginning of pregnancy, erosion of the cervix appears. There may be no discharge at all, and this is also normal in the early stages of gestation.