Which hormones are secreted during pregnancy?

By Zaira Salvador.
Last Update: 02/28/2018

Although many hormone levels are affected in the body when a woman becomes pregnant, the following are the most common hormones and their functions:

hCG (human chorionic gonadotropin
This is the one that causes the nausea often associated with pregnancy, and is produced only during pregnancy.
Progesterone
It is released by the ovaries and the placenta. It stimulates the thickening of the endometrial lining to prepare for embryo implantation.
Estrogen
It is produced by the placenta and helps maintain a healthy pregnancy.
hPL (human placental lactogen)
Produced by the placenta, provides nutrition to the fetus and stimulates milk glands in the breasts.

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 Zaira Salvador
Zaira Salvador
BSc, MSc
Embryologist
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV
Embryologist. Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI) License: 3185-CV.
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