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Medically reviewed by Monique Rainford, MD Key Takeaways Hormonal changes, such as menopause and polycystic ovary syndrome, can cause missed periods. The cause may need to be evaluated.Intense stress ...

Add Yahoo as a preferred source to see more of our stories on Google. FotoDuets/Getty Images For many people, a missed period is the first signal that they're pregnant. However, this often isn't the ...

If you're waiting for a late period, there's one thought that's likely going through your mind:&nbsp;<em>Am I pregnant?</em> You may miss a period for one or two ...