Let the process begin

In the egg freezing process, a woman’s mature eggs are developed and removed using standard IVF techniques, which involves the following:


The ovaries are stimulated, to grow multiple follicles, using various medications. The response of the ovaries is monitored with ultrasounds and/or blood tests, to assess the size and quantity of follicles. In order to assist with the final maturation and the loosening of the egg from the follicle wall, an injection of a Gonadatrophin Releasing Hormone (GnRH) Agonist - AKA the trigger - is administered. This is a time-dependant process and critical to the successful collection of eggs.


This is performed 35-38 hours after “the trigger” under ultrasound guidance and takes place, while you are sedated. The number of eggs retrieved in a single stimulation cycle will depend greatly on your health, age and how well you respond to the medications. Your specialist will plan and tailor your treatment with these, and other factors in mind.

Freeze it and leave it
until you’re ready

Your eggs are frozen using a world-renowned technique, commonly known as “Vitrification.” This state-of-the-art technique was pioneered by City Fertility’s partner CHA Medical group and is used in clinics world-wide as standard clinical practice.

As with all medications and medical procedures, side effects and potential risks are involved. We encourage you to discuss these with your treating specialist.

Your frozen eggs will be stored in highly secured at City Fertility. City Fertility has a 10-year storage limit. You can apply for an extension by contacting us as you reach the 10-year mark, our team will be happy to guide you through the process. In the mean-time, we will take good care of them.

City Fertility follows egg storage guidelines recommended by the National Health and Medical Research Council (NHMRC Ethical Guidelines 2017).