In the case of a woman with a 30-day menstrual cycle, her March aunt will be falsely delayed because February is 28 days. Women with a 28-day February and a 30-day menstrual cycle will experience a staggered timing of their next period coming in March. Usually a normal menstrual cycle is normal as long as it is not more than seven days early or staggered. Whether it is March or any other month, it is normal if it is not more than seven days early or late. It is important to note that married women in their childbearing years need to be prioritized to rule out pregnancy if their menstrual period is more than seven days late. If the menstrual period is not normal, you need to be examined by a medical professional to find out the cause and then take appropriate measures.