Ensuring the pregnancy from pre-ovulation to fetal delivery – a perfectly timed endocrine cascade in women?”

Ensuring the pregnancy from pre-ovulation to fetal delivery – a perfectly timed endocrine cascade in women?” – Describe the origin and role(s) of each pregnancy hormone involved in the endocrine cascade and order them using their spatio-temporal secretion between these two mentioned physiological events. Finally, from your findings, briefly interpret the statement within your conclusion