Egg Donation: What Are The Pregnancy Rates?

Egg donation is an assisted reproduction technique which is in high demand by couples who have fertility problems. Many women decide to become mothers using donated eggs due to the high pregnancy rates with quality embryos.


96% of patients achieve pregnancy after 3 courses of egg donation, according to figures of Instituto Bernabeu.


The main factor for these high rates is the age of the egg donor, since the younger the woman is, the higher the pregnancy rate. So, at Instituto Bernabeu, the egg donors are between 18 and 32 years old, with an average age of 25. Moreover, they undergo a comprehensive health check, which includes a psychological, clinical and genetic evaluation. The rate of mature eggs isĀ 90%, demonstrating the proper selection of the egg donors and the correct application of the ovarian stimulation patterns.


Furthermore, around 70% of patients have surplus good quality embryos which are suitable to vitrify, contributing a major asset for future attempts. At Instituto Bernabeu, with more than 35 years of experience, the egg donor is selected individually to ensure the maximum similarity with the recipient patient. Thus, an appropriate number of eggs are ensured under thorough medical supervision.


This way, the fertilisation rate (the amount of eggs that will generate embryos) is 75%.


In addition to that, about 70% of the cycles additional quality embryos can be vitrified with a cumulative pregnancy rate of 85% per cycle.

There is also a philosophy of Single Embryo transfer which helps avoiding twin pregnancies and therefore avoiding high risk pregnancies.