If pregnancy does not occur, estrogen and progesterone levels drop, causing the uterine lining to shed and triggering the menstrual period.

Authors

• Person: Not available Organization: Perelel
  Menstrual Cycle Phases: Decoding the Stages - Perelel

Sources

• Menstrual Cycle Phases: Decoding the Stages - Perelel perelelhealth.com Perelel via serper

Referenced by nodes (5)

• estrogen concept
• progesterone concept
• endometrial lining concept
• menstrual period concept
• pregnancy concept