URGENT..i am worried?

Two facts were missing. Did you have Sex and did you use protection ? If the protection failed, you could be.

Missed Period Overview

Most women have between 11 and 13 menstrual periods each year. You may be different: You may have more or fewer. Missed or irregular periods must be looked at in terms of what is normal for you.

Periods are often irregular during the first few years after menstruation starts. It may take several years for the hormones that control menstruation to reach a balance.

Pregnancy is the most common cause of a missed period. If you might be pregnant, treat yourself as if you are pregnant until you know for sure. Use a home pregnancy test as the first step to finding out whether you are pregnant.

If you are not pregnant, other causes of missed or irregular periods include:

Excessive weight loss or gain. Although low body weight is a common cause of missed or I rregular periods, obesity also can cause menstrual problems.

Eating disorders, such as anorexia or bulimia. For more information, see the topic Anorexia Nervosa or Bulimia Nervosa.

Increased exercise. Missed periods are common in endurance athletes.

Emotional stress.

Illness.

Travel.

Medicines such as birth control methods, which may cause lighter, less frequent, more frequent, or skipped periods or no periods at all.

Hormone problems. This may cause a change in the levels of the hormones that the body needs to support menstruation.

Illegal drug use.

Many women do not resume regular periods until they have completed breast-feeding.

Remember, you can still become pregnant even though you are not menstruating. Practice birth control if you do not wish to become pregnant.