After doing in vitro blastocyst transplantation, according to each person’s physical condition is different, the symptoms are different, in the transplantation of 3-4 days, the blastocysts should start to implant, the implantation of about 4-5 days or so, after the implantation of the successful, the trophoblast cells will be a large number of secretion of HCG, the transplantation of the 9th day of the blood test to check the blood HCG, some women will probably be obviously elevated, that is to say, implantation of the success of the bed. Some women may experience a slight increase in HCG, indicating successful implantation. Some women may experience a slight pain in the abdomen and a small amount of vaginal bleeding, which belongs to implantation bleeding and is a normal phenomenon that does not require special treatment. There is no need to worry about the absence of any symptoms, it is possible that the implantation is slow, it is recommended to continue to observe, in about two weeks after the transplantation, do urine pregnancy test, if the test result is positive, it means that the blastocyst transplantation is successful.