Morning Sickness
I recently did a few posts about the menstrual cycle. It’s only fitting that we move into pregnancy. Early pregnancy is maintained by a high human chorionic gonadotrophin (hCG) level, which signals the corpus Luteum to continue producing progesterone. hCG levels are what a pregnancy test used to detect pregnancy, they usually rise through the first trimester and then decline after that. The placenta takes over producing progesterone towards the end of the first trimester and increases this until mid …