Question

Why/how does the introduction of progesterone during the first 14 days of a (human female’s) cycle prevent pregnancy?

Answer 1

Progesterone is a primary hormone coordinating your menstrual cycle and pregnancy. You need the right amounts of progesterone at the right times to become pregnant, as well as have good fetal development and a successful labor.

Role of Progesterone in Pregnancy.

When an egg (ovum) is released from your ovary during the menstrual cycle, progesterone levels rise, preparing your uterus lining for a fertilised egg and helping the placenta form once pregnancy begins. During pregnancy, progesterone aids your fetus’ development and readies your body for childbirth and nursing. Progesterone levels continue rising throughout pregnancy, until your baby is born.

How Progesterone can prevent pregnancy?

Introduction of progesterone during the first 14 days of a (human female’s) cycle prevent pregnancy by preventing the process of ovulation. Normally, when you release an egg (ovum) during your menstrual cycle, your progesterone levels rise. This signals your body to not release more eggs. But if your progesterone levels are already higher because of a health issue or birth control pills, your ovaries are tricked into not releasing any eggs at all. Then, you cannot become pregnant.