Gynaecology & Obstetrics During early pregnancy, the trophoblastic cells secrete which of the following hormones in order to maintain the corpus luteum? A Estrogen B Human chorionic gonadotropin (hCG) C Luteinizing hormone (LH) D Progesterone 💡 Explanation During early pregnancy, the trophoblastic cells secrete which of the following hormones in order to maintain the corpus luteum? ✓ Correct Answer: B. Human chorionic gonadotropin (hCG)