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Fertility Glossary

Infertility

Not conceiving after 12 months of regular unprotected sex (or 6 months from age 35).

Fertility basics

Infertility is usually defined as not achieving pregnancy after 12 months of regular unprotected sex. From about age 35 many South African specialists suggest assessment after six months, and earlier still if periods are absent or very irregular, there is known tubal damage, endometriosis, previous pelvic infection, cancer treatment or a known sperm problem. Infertility is a medical condition rather than a personal failing, and in roughly a third of couples a male factor contributes.

Also known as: cannot conceive, struggling to conceive, unable to fall pregnant

Sources

  • World Health Organization — infertility and reproductive health definitions
  • SASREG 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.

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