Success rates


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As a young healthy mother you will most likely have a lot of young healthy eggs, which can be used to produce many good embryos. Having a good number of embryos will mean that even if you already have 2 or 3 children of one gender you still have a very good chance of finding some opposite gender embryos among your embryo pool and a great opportunity of having a child of desirable gender!

IVF although very successful (54% of women under the age of 35 become pregnant within 1 IVF  embryo transfer at our clinic) it is not 100% successful so there is always a risk  that the cycle will not result in a pregnancy, even if you have conceived on your own naturally before!

In 2014 at our clinic clinical pregnancy rates per fresh embryo transfer were 45,1% in the age 35-39 y.o., and 22,8% in the age 40 or higher. As you see IVF success rates decline with the age.

BUT……. incorporating PGS method into the IVF process allows to increase your chance to get pregnant to 60% with just one embryo transferred independent of your age!

How does this work?

Luckily, PGS not only allows us to find out embryonic gender through testing for X and Y chromosomes, but also to check all the remaining 22 chromosome pairs at the same time! This is to exclude such genetic problems as Down syndrome in a baby, to reduce the risk of miscarriage and to increase the chance that the embryo will attach(=implant)! This means that for your embryo transfer we will use an embryo of the desired gender NORMAL for all the 23 chromosome pairs!

Checking your embryos for all the 23 chromosome pairs allows you to not only choose the gender of an embryo before transferring it back into the uterus, but also to increase your chances of becoming pregnant from 20-53% in IVF in different age groups to 60% with just one embryo transferred independent of your age!

Not just checking your embryos for gender, but also checking them for 23 chromosome pairs is also a good thing to do for both younger and older women alike as we know that in women:

  • 20-25% eggs are already abnormal in the age of 30
  • 40-45% of eggs are abnormal in the age of 35
  • 70-75% of abnormal eggs in the age of 40.

So if you are choosing the gender of your future child, you can also use this unique opportunity and check your future child for chromosome problems even before pregnancy starts!!!


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Read more about family balancing:

After 3 IVF in Sweden, 3 miscarriages, Elisabet and Pär became parents of lovely Ester through egg donation in St. Petersburg

"...If I would have known at the start, what I know now, I would not have done my IVF-attempts at my age as egg donation gave us result straight away. It was the best decision of our lives!"

Karin and Pedro, Sweden

“…Well the Millennium shift came, the year 2000, we all remember what we did then, right? I got cancer, Hodgkin's lymphoma... And when I stand here now 17 years later, you understand that it went well! Except for one important thing…"


Having questions? Ask our doctors now!

A blog by Tone Bråten

A blog — to help you on your journey to become parents!

Our patients tell their stories

  • Willeke and Mario from Netherlands come to AVA-Peter for egg donation treatment… Enjoy this touching and sincere documentary by Jorien van Nes