Which of the following hormones are secreted in women only during pregnancy?
A. Relaxin
B. Oxytocin
C. hCG 
D. hPL 
E. Progesterone
Choose the most appropriate answer from the options given below.

A, C, and D only

A. Relaxin is primarily secreted during pregnancy in women. It helps to relax the pelvic ligaments and prepare the body for childbirth.

B. Oxytocin is secreted during pregnancy to facilitate uterine contractions during parturition. It is also secreted after childbirth to stimulate milk ejection. 

C. hCG (human chorionic gonadotropin) is produced by the placenta during pregnancy. Its primary function is to
support the developing embryo and maintain the early stages of pregnancy. If pregnancy occurs, hCG prevents
the regression of corpus luteum and ensures the continued production of progesterone. Progesterone is
necessary to maintain the endometrial lining and create a suitable environment for the developing embryo.

D. hPL (human placental lactogen) is secreted by the placenta during pregnancy. Its primary function is to
support foetal growth and development. It promotes the release of glucose from the mother’s liver into the bloodstream, ensuring a steady supply of energy for the growing foetus. Additionally, it helps increase the uptake of maternal amino acids by the placenta, supporting protein synthesis and foetal growth.