Having done a blastocyst transfer day 10 with a white panel is still promising and does not confirm that the transfer has failed. 1. The accuracy of early pregnancy test paper is not 100%, sometimes there may be false positive or false negative results. So now you can’t be sure that you’re not pregnant if you get a white panel. You can take a blood test for HCG to determine if you are pregnant. 2. If the embryo is transferred for three days and the white plate is detected on the 10th day after the transfer, the result is inaccurate because the time is too short, and the urine is usually tested with the pregnancy test paper about 14 days after the transfer of the embryo. 3. If the transfer is a blastocyst, the urine is usually tested on the 11th day after the transfer, so the test on the 10th day is also relatively early, now this test result is not accurate, and can not be sure that there is no pregnancy.