Harvesting the eggs as a result of egg retrieval (which can be attained employing a transvaginal ultrasound-guided needle) for both freezing or fertilization. Fertilization requires mixing the egg with sperm inside a laboratory dish to create an embryo. In vitro fertilization (IVF) is when sperm and eggs are mixed outdoors https://bookmarkingalpha.com/story18466285/considerations-to-know-about-assisted-reproductive-technology