In the first 4 weeks of pregnancy, your hCG levels typically double about every 2 to 3 days. If you’re at risk for miscarriage, you’re more likely to have hCG levels that don’t double or decrease.

The developing placenta secretes the glycoprotein hormone hCG, human chorionic gonadotropin, soon after fertilization. In normal pregnancy, this hormone can be detected in serum in just seven days ...

The Food and Drug Administration (FDA) has approved hCG injections to treat specific medical conditions. In females assigned at birth (FAABs), they can help treat infertility. In males assigned at ...