Beta hCG

Also written as beta test, pregnancy blood test

Written by Zayn Miah & R KhanomLast updated 17 September 2026Not clinically reviewed

A blood test measuring the level of human chorionic gonadotropin, used to confirm and monitor early pregnancy after embryo transfer.

In plain English

It's the blood test your clinic does to tell you whether the transfer has worked, usually about two weeks after transfer.

Why it matters

A single result confirms pregnancy, and repeat tests a couple of days apart show whether the level is rising as expected.

Related terms

Guides that cover this

Written by patients, not clinicians. This page has not yet been reviewed by a named fertility professional, so it explains published guidance and points you to the original source instead of giving medical advice. It is not medical advice. Decisions about your treatment belong with your own clinic. Read our editorial policy and corrections policy.