Until recently, we transferred embryos three to five days after the oocyte retrieval.
Over the past few years, however, more and more data have suggested that babies born following frozen embryo transfer may be healthier than those born following fresh embryo transfer. Therefore, we have transitioned our program over to one in which we transfer all embryos (except those from egg donors) during a frozen embryo cycle.
All embryo transfers are done in the IVF surgery center. The procedure is not painful and therefore no anesthesia is used. A small catheter – similar to that used to perform IUI – carrying the embryo(s) is placed through the cervix into the uterus. Ultrasound guidance is used to make sure the catheter is in the right place. Then the embryo(s) are released into the uterus. A pregnancy test is done nine days after the transfer.