Generally speaking, there is still a little bit of hope even after a blastocyst transfer on the seventh day or a blank slate. Blastocyst transfer on the seventh day of the test is a blank slate, usually through the pregnancy test paper, there may be the seventh day of the transfer is still relatively short, the pregnancy test paper may not be able to accurately determine whether it is successful or not, so for the time being, do not be overly nervous for the time being. If the HCG of the blastocyst has not reached a high level after its implantation, so it may not be detected, it is suggested that you can go to the hospital for another 3-5 days interval, and have blood drawn directly to check whether the blood HCG is pregnant or not. After the transplantation, you need to maintain good living habits, pay more attention to rest, and it is best not to engage in strenuous exercise, so as not to affect the fetal implantation, and if there is any discomfort, you need to consult a doctor in a timely manner.