The time for the second transfer after a failed transfer depends on the recovery of the body and varies from person to person, there is no such thing as the best time to 1. Fresh embryo transfer: when undergoing IVF, after removing the fresh embryos, the transfer is usually carried out within 3 to 5 days. If the transfer fails, the patient needs to rest for about 2 months before the transfer can be performed again. 2. Frozen Embryo Transfer in Natural Cycle: For patients with regular menstrual cycle, after observing ovulation by ultrasonography, frozen embryos can be thawed and transferred, and pregnancy can be checked in about 14 days after transfer. If the transfer fails, the embryos are usually transferred again after the next ovulation. 3. Artificial cycle embryo transfer: Artificial cycle embryo transfer requires the use of estrogen and progesterone, and if the transfer fails, it can be done again in the next month. When preparing for pregnancy, eat reasonably, follow the doctor’s advice to supplement folic acid in time, and maintain a good psychological state.