The exact time of implantation after IVF transfer varies from person to person and cannot be generalized, mostly related to the own condition of the transferred fertilized egg. Generally speaking, there are two main categories of IVF transfer, one is the embryos on the third day of transfer and the other is the blastocysts on the fifth day of transfer. The embryos on the third day of transfer will be ready for implantation in about two days, while the blastocysts on the fifth day of transfer will be ready for implantation. However, it is important to note that patients who undergo transfer on the same day may have different changes in blood levels, some will be particularly high while others are relatively low, but generally they will not affect the normal development of the child and there is no need to worry excessively. Therefore, depending on the embryos at different times of IVF transfer development, the time of implantation may vary slightly, but under normal circumstances, they will usually implant two days later (day 3-4 after transfer). It should also be noted that bed rest is needed for 48 hours after the transfer to avoid walking and lifting heavy objects with force to prevent accidents.