Most times, pregnancy is the most common cause of a missed period.

You may miss a period for one or two months, or you may experience complete amenorrhea, which is a lack of menstruation for three or more months in a row.

But it is important to note that there are other factors asides pregnancy that can lead to a woman missing her period or experiencing a late period.

1. Stress

When you are extremely stressed, the human body goes through certain changes which can alter the production of certain hormones that interrupts the ovulation in a woman's body causing a delayed period.

2. Medications

There are certain medications that can alter or delay periods. A common one is contraceptive. Other forms of medication that can delay a woman's period include anti-depressants, anti-psychotics and chemotherapy drugs.

3. Extreme Exercise

Estrogen is a type of hormone that helps i the regulation of the feminine reproductive system. When women engage in extreme exercises or very strenuous exercise, the level of estrogen in the body reduces interfering with the woman's cycle and ovulation, thereby causing a delay in the monthly period.

4. Polycystic Ovary Syndrome (PCOS)

Women with PCOS experience hormonal imbalance or disorder which leads to delayed period or not experiencing periods at all.

5. Premenopause

Before you reach menopause, you might experience a few late or delayed periods or a completely stopped period. This is just a sign of early menopause, especially if you are below 45, and it is really absolutely nothing to worry about.