A maximum of 2-3 embryos may be transferred in each cycle after full discussion with you in order to reduce the risk of multiple pregnancies. The procedure takes place in the operating theater but anesthesia is not usually necessary. Very rarely four embryos are transferred. A speculum is placed in the vagina and the cervix is exposed and cleaned with sterile water. The embryos are then drawn up in to a catheter, which, is then carefully and gently inserted through the carvix (neck of the womb) into the uterus. After transfer, the catheter is carefully checked by the embryologist to make sure that all that embryos have been carefully transferred. Embryo transfer is under ultrasound guidance.