The corpus luteum will produce progesterone for about 12-16 days (the luteal phase of your cycle.) When the egg is fertilized, the corpus luteum will continue to produce progesterone for the developing pregnancy until the placenta takes over around week 10.
After implantation occurs, the hormone will begin to rise and should increase every 48-72 hours for the next several weeks.
Progesterone The follicle from which the egg was released is called the corpus luteum.
It will release progesterone that helps thicken and prepare the uterine lining for implantation.
It is common to have many questions about what this early development truly involves and what is to be expected.
We have gathered information from different sources in order to provide the best guidelines of what normal early fetal development looks like.
This cannot always be detected by ultrasound—sometimes it may take a special eye or very good equipment to see this “reaction” in the endometrium lining.