Pregnancy after treatment
The yolk sac appears inside the gestational sac and provides nutrients before the placenta takes over. Seeing it is a reassuring early step and helps confirm that the sac represents a pregnancy rather than fluid.
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.