In some singleton pregnancies, women have lower than normal hCG levels throughout the course of the pregnancy without it being a reason to be concerned.
This applies to some multiple pregnancies as well: even though hCG levels will be higher than with a single baby, they will be high but not so significantly as typically in multiple pregnancies. The levels of the pregnancy hormone vary greatly from woman to woman, so answering this question accurately is difficult.
Read the full article on: What Are Normal hCG Hormone Levels during Pregnancy? ( 61).
Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.