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Fertility Glossary

Modified natural-cycle FET

A natural-cycle FET that uses a trigger injection or some medication to time ovulation.

Frozen embryo transfer

Modified natural cycles follow your own follicle but add an hCG trigger and/or progesterone support, which can make timing more predictable.

Also known as: modified natural FET, mNC-FET

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Last reviewed: 23 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

Related terms

Natural-cycle FET

A frozen embryo transfer timed to your own ovulation, without oestrogen tablets.

Trigger Injection

Injection that matures eggs before collection.

Luteal Support

Hormone medication given after egg collection or embryo transfer to support the uterine lining.

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