After fertilisation, a patient’s embryos will be cultured in the laboratory until the embryo transfer (ET). If only a small number of embryos are available (i.e. one or two), the ET will be scheduled for Day Two. If there are more than two embryos, the transfer could be on either Day Three or Day Five (see Blastocyst Culture).
The embryo transfer is a simple and painless procedure. The best two embryos are selected by the embryologists and drawn up into a fine catheter, which is gently inserted through the cervix before being expelled into the uterine cavity.
According to HFEA regulations, three embryos may only be transferred if the female is over forty years of age.
Partners are welcome to attend.