Irregular Periods Explained: The Main Reasons Why Your Period Is Out of Whack

Pregnancy

Pregnancy is the most obvious reason as to why a regular menstrual cycle comes to a halt. A menstrual period occurs when a prepared uterine lining fails to embed a fertilized egg. When the fertilized egg succeeds at becoming implanted in the lining and continues to grow into a baby, a woman does not continue to shed her uterine lining. Therefore, stopping the menstrual cycle for the duration of her pregnancy, and in some cases longer if the woman is breastfeeding. If bleeding does occur during pregnancy, it is not normal and requires immediate attention from a health care provider.