hCG, produced during pregnancy, provides key insights into its progression. Before pregnancy, hCG is typically undetectable. After implantation, levels rise exponentially, doubling every 2-3 days, peaking between weeks 8-12. During late pregnancy, they plateau and gradually decline, remaining elevated until delivery. Postpartum, hCG drops rapidly, reaching undetectable levels within 4-6 weeks. Variations in hCG levels can indicate multiple pregnancies, molar pregnancies, or ectopic pregnancies. Monitoring hCG is crucial for pregnancy management, helping detect complications, and guiding appropriate interventions.
