Although it is not normal, it is possible that there may be some complication that may cause the cycle to be cancelled, especially when the egg donation is fresh. This means that the donor and recipient must be synchronized so that the donor's eggs and the recipient's endometrium are in sync, which is a bit tricky. Donor eggs are usually vitrified until the recipient's endometrium is in optimal condition for transfer.
Read the full article on: Why do in vitro fertilization cycles sometimes get cancelled? ( 40).
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)