Egg freezing gives you the option to use those eggs to get pregnant at a later point in time. When or if you decide you’re ready to start a family, your eggs will be thawed in a lab. Then, they’ll undergo the embryo formation & transferred back to uterus.
The technology of cryopreservation has been a boon to ART & also to patients who are exposed to any gonadotoxic diseases like cancer or undergoing any surgery where risk of ovarian damage is higher in such cases women can freeze their oocytes for longer period of time in liquid nitrogen that is too done by highly experienced embryologists in lab. Freezing eggs won’t decrease their quality or the chances of pregnancy.