Embryo transfer is the last and most important step in the IVF procedure. At this step the fertilized embryo is transplanted into the uterus of a woman. The doctor uses a catheter to place the egg inside the womb. This is the final step of the procedure where developing embryo(s) are transferred into the uterus. This procedure is usually done after 3 to 5 days after egg retrieval and fertilization. In this procedure, you will be given a mild sedative. Usually, this procedure is painless for most of women, but some may experience mild cramps. The embryo is placed inside the uterus with the help of a long and thin flexible tube known as a catheter. At the end of the catheter, a syringe is attached containing embryo(s) suspended in a small amount of fluid. Then doctors place the embryo(s) inside the uterus with the help of the syringe. If the whole procedure takes place successfully, then implantation will occur after six to ten days following egg retrieval. Deciding the number of embryos you need to transfer during an IVF cycle is a difficult decision. Keep the listed points in mind while deciding how many embryos to transfer during an IVF cycle: If you have been trying to conceive for a long time, keeping two or more embryos increases your chances of success. If you are planning to conceive more than once, you should increase the count. However, single embryo transfers are safer for the mother and the baby’s health.