There are many reasons why a period can be late or why your menstrual cycle can be delayed. Although aggravating, a missed period is fairly common and does not pose any real health risks. Here are the most common symptoms why your period may be late:
If you have a weight problem, this may cause your menstrual cycle to become irregular and may cause a delayed period.
Conversely, if you are underweight you can experience delayed or missed periods due to undernourishment.
Obviously, pregnancy can be the reason you are having a late period. Taking a home pregnancy test can tell you if this is the reason for your delayed period.
If you are over the age of 40, your late or missed period can be due to peri-menopausal reasons, or the onset of menopause.
If you have recently been sick, or are recovering from an illness, your period may happen later than usual.