What is hCG? Beta hCG, tests and levels

Illustration of a person with hands on hips next to a medical shield icon; feature art for “What is hCG?”

Human chorionic gonadotropin (hCG) is a hormone your body makes in early pregnancy. It is mainly made by tissue that will become the placenta after the fertilised egg has implanted in the uterus. Laboratories usually measure the beta part of hCG, so you will often see “beta hCG” on a blood test report. This is … Read more

Conception date vs intercourse date explained

Illustration of a woman presenting a calendar with icons to show that conception and intercourse dates can differ.

Key points Conception means fertilisation near ovulation, not the day you had intercourse. The fertile window usually spans about six days and ends on ovulation day. Sperm can survive in the reproductive tract for up to about five days in the right cervical mucus, so intercourse before ovulation can still lead to conception later. Implantation … Read more