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Fertility Glossary

Biochemical pregnancy

A very early loss detected only by a positive pregnancy test.

Fertility basics

A biochemical pregnancy is a pregnancy identified by rising hCG in blood or urine that ends before anything can be seen on ultrasound. It is also called a chemical pregnancy. These losses are common, more often detected now that home tests are sensitive, and are not usually a sign of a lasting problem — though repeated biochemical pregnancies are worth discussing with your specialist.

Also known as: chemical pregnancy, very early miscarriage

Related Australia guides

Sources

  • Healthdirect Australia (healthdirect.gov.au)
  • Australian and New Zealand Assisted Reproduction Database, National Perinatal Epidemiology and Statistics Unit, UNSW Sydney (npesu.unsw.edu.au)

Last reviewed: 10 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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