Human Chorionic Gonadotropin(hCG)
hormoneDefinition
A hormone produced by the developing placenta after implantation. In IVF, it is also used as a trigger shot to mature eggs before retrieval.
In IVF Treatment
The beta hCG blood test is the definitive pregnancy test after IVF. A positive beta and rising hCG every 48 hours is a reassuring sign of early pregnancy. hCG is also used as the trigger shot (Ovidrel, Pregnyl) to complete egg maturation.
Frequently Asked Questions
What is a good first beta hCG level?
There is no single "good" number. What matters more is that hCG doubles approximately every 48-72 hours in early pregnancy. Many clinics consider levels above 100 mIU/mL at 14 days post-retrieval a positive sign.