Day 8 of the embryo transfer cannot be detected with early pregnancy tests because it is too short a period of time. However, patients can consider going to the hospital for a blood test for HCG to be able to detect it. At this time, the chorionic gonadotropin value, will be out of the normal range, if it is out of the normal range, basically can be sure that the transfer is successful. However, it is important to review the results regularly, as long as the chorionic gonadotropin value doubles, it means that the transferred embryo is developing well. If the value increases slowly or does not increase, or even decreases gradually, it is considered that there is a possibility of transfer failure. If the test is carried out with a pregnancy test, it can be detected 10-14 days after the transfer. If you can’t detect it on the 8th day, consider going to the hospital for a blood test for HCG.