A rise of less than about two-thirds over 48 hours raises concern about a failing pregnancy or an ectopic, but some healthy pregnancies rise slowly. Repeat testing and ultrasound clarify the picture, and clinics follow this carefully rather than waiting.
Also known as: poor doubling, low hCG rise
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only โ always follow the advice of your own clinic, doctor or pharmacist.
