IVF & IUI
Natural-cycle IVF collects the one egg that develops in an unstimulated cycle, sometimes with a trigger injection only. It avoids stimulation medicines and their costs and side effects, but there is a real chance of collecting no egg or having no embryo to transfer, so several cycles may be needed.
Also known as: unstimulated IVF
Related South Africa guides
Sources
- ESHRE guidelines and patient information
Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.