Back to glossary

Fertility Glossary

Pregnancy of unknown location

A positive test with nothing yet visible on ultrasound.

Complications

A pregnancy of unknown location means hCG is positive but no pregnancy can be seen in the uterus or elsewhere. It may turn out to be a very early intrauterine pregnancy, an early loss or an ectopic pregnancy. Management is close monitoring with repeat hCG and scans until the location is clear — attend every appointment offered.

Also known as: PUL

Sources

  • Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.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.

Explore in-depth guides

Learn more with Antega's fertility guides and articles.