Why Is My Period Late? 8 Common Reasons Besides Pregnancy Why Is My Period Late? 8 Common Reasons Besides Pregnancy A late period can be concerning, especially when pregnancy is not the cause. If you are not pregnant, changes in your menstrual cycle may be linked to stress, weight fluctuations, hormonal imbalances, or underlying medical conditions. While a 28-day cycle is often cited as average, a normal menstrual cycle can range from 21 to 35 days . Occasional delays are common, but persistent irregularity may signal a health issue that deserves attention. How the Menstrual Cycle Works The menstrual cycle is regulated by hormones released from the brain, ovaries, and endocrine system. Estrogen and progesterone play central roles in ovulation and menstruation. Disruptions in this hormonal communication can delay or prevent ovulation, leading to a late period . 1. Stress Chronic str...
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