In most instances, frozen embryo transfers (FET’s) cycles can be less costly than what are known as fresh embryo transfers, with medication and clinical visits usually amounting to less of an expense, as their is no requirement for egg retrieval , fertilization, or embryo culture. Research suggests that pregnancy rates can increase when frozen embryo transfers are performed. One reason for this is often linked to the fact that the uterine lining may be less receptive to implantation of embryos following egg capture, due to higher levels of progesterone.

Since FET’s can be performed during a cycle where ovarian stimulation is not necessary, the endometrium, (uterine lining) may be more receptive to the implantation of the embryo(s), thus helping to contribute to higher pregnancy success rates.