The primary sign of pregnancy is missing a menstrual period or two or more consecutive periods, but many women experience other symptoms of pregnancy before they notice a missed period.
Missing a period does not always mean a woman is pregnant. Menstrual irregularities are common and can have a variety of causes, including taking birth control pills, conditions such as diabetes and polycystic ovary syndrome, eating disorders, excessive exercise, and certain medications. Women who miss a period should see their health care provider to find out whether they are pregnant or whether they have a specific health problem.
Pregnancy symptoms vary from woman to woman. A woman may experience every common symptom, just a few, or none at all. Some signs of early pregnancy include1:
Many of these symptoms can also be a sign of another condition, the result of changing birth control pills, or stress, and thus they do not always mean that a woman is pregnant. Women should see their health care provider if they suspect they are pregnant.
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