After 11 days after the ovulation with early pregnancy test paper test appeared white plate, is not mostly no chance, but the vast majority of in the ovulation, the earliest fertilized egg to almost 13 days or so time to be able to bed, the latest about 15-16 days or so when it will be able to bed, only after the fertilized egg to bed, with early pregnancy test paper test will be able to detect a positive. And when the fertilized egg after the bed, the trophoblast cells began to secrete blood HCG, and the concentration of blood HCG in the urine is not much, so it is best to recommend about 20 days after ovulation, and then use the morning urine to do early pregnancy test, in the clinic the positive results will be very high, this time there is a white plate does not indicate that there is no pregnancy, and it is recommended that a period of time and then do the test.