<prompt> Corpus luteum in the first 6 weeks of pregnancy is maintained by -BetaHCGEstrogenProgesteroneHuman placental lactogen  <response>: Ans. is a i.e., Beta HCG Functions of Human Chorionic Gonadotropina Maintainence of corpus luteum till 6 weeks of pregnancy.b Stimulation of fetal testicular testosterone secretion which is maximum approximately when hCG levels peak.c Immunosuppressive activity, inhibits maternal processes of immunorejection of the fetus as a homograft.d Stimulates maternal thyroid thyrotropic action.e Promotes relaxin secretion from corpus luteum. 