The transfer of blastocysts generally refers to IVF, and if this fails, the next transfer can usually take place after another period or after a three-month interval. Generally speaking, the failure of blastocyst transfer may be due to the biochemical pregnancy after the transfer or the phenomenon of embryo abortion in the first trimester of pregnancy. The time for re-transfer is different in different cases. If there is a biochemical pregnancy, and there are still frozen embryos in the hospital, and the woman’s health condition is relatively good, after this failed transfer, you can wait for a period before you can transfer again. If there are no more frozen embryos, then a second ovulation is needed, which is usually recommended after the woman has had three periods, i.e. she still needs to wait three months. If there is an embryo failure in the first trimester, then a miscarriage may also be treated, after which it is usually recommended to wait about three months before another transfer. There are many factors affecting IVF, so after the embryo transfer, you should pay attention to rest, avoid staying up late, and if there is any abnormality, it is recommended to consult a doctor in time.