hCG
Human chorionic gonadotropin (hCG) is a hormone produced by the cells that will form the placenta, starting shortly after implantation. It is the hormone that pregnancy tests detect, either in urine or blood. In a healthy early pregnancy, hCG levels typically double every 48 to 72 hours during the first trimester, peaking around weeks 8 to 10 before gradually declining. Doctors sometimes order serial blood hCG tests to monitor whether a very early pregnancy is progressing normally, particularly after fertility treatment or if there is concern about ectopic pregnancy or miscarriage. Home urine tests detect hCG from about 10 to 14 days after ovulation.
What This Means for You
Understanding hCG is an important part of your early pregnancy journey. When you are trying to conceive, knowing terms like this helps you track your cycle accurately and communicate with your doctor or fertility specialist.
Explore our Trying to Conceive hubGood to Know
A single hCG number means little on its own. What matters is the trend over 48 hours. If your doctor at KKH or NUH orders repeat hCG blood tests, rising levels are generally reassuring, but a slow rise or drop needs prompt follow-up.
Related Terms
Source: https://www.pregnancybirthbaby.org.au/glossary-of-pregnancy-and-labour
Always consult your healthcare provider for personalised advice.
Free Tools for Singapore Parents
Put your knowledge into action with our free calculators and trackers.