What happens in in vitro fertilization?
An in vitro fertilization treatment cycle can be divided into five steps:
- Ovarian stimulation, which uses medications to increase the number of eggs available
- Egg collection
- Embryology, which covers preparing the eggs for fertilization, adding sperm to the eggs to create embryos; care of the embryos in the laboratory, and freezing any suitable spare embryos
- Embryo transfer of one or sometimes two embryos into the uterus
- Luteal phase, which covers preparing and maintaining the uterus to allow an embryo to implant and give rise to pregnancy