Frozen Embryo Transfer (FET)

FET is when eggs that have already been collected, fertilised and frozen in our laboratory are transferred into the womb. The embryo then needs to attach itself to the wall of the womb in order for the pregnancy to develop.

The management of FET cycles is simpler and cheaper than fresh cycles because IVF stimulation medication is not required.

What’s involved in a FET cycle?

Thawed embryos may be replaced during a natural cycle when no hormonal medication is used. Or in a medicated cycle when small doses of oestrogen and progesterone are given to mimic a woman’s natural cycle. Your Fertility Consultant will discuss both options with you and advise which is best based on your age, previous medical history and your own preference. Pregnancy outcomes are similar in both types of frozen embryo transfer cycles.

Around 95% of embryos survive the thawing process. Success rates depend on the quality of the embryos frozen but are now very similar to the results with a fresh cycle. The Embryologist will discuss your individual requirements, advise on the quality of your embryos, and discuss the chances of success.