How long does it take to menstruate after a failed transplant?

Women who fail to transplant generally menstruate for about a week. Menstruation is to expel embryos from the uterus and pregnant sacs, so that women can undergo secondary transplantation. After embryo transfer, progesterone injection will be selected. Progestin helps the maturity of luteal phase function, so that the embryo can be implanted normally. If the transfer fails, progesterone injection will be stopped. Therefore, menstruation will come soon. Women need to do a good job of related hygiene problems. Moreover, after menstruation, they can choose whether the uterus is clean or not. If the flow is not clean, it will affect the implantation of fertilized eggs.