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Reasons for a late period (when not pregnant)

Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed

Pregnancy is the first thing many people think of with a late period, but there are many other reasons — and a delayed period now and then is completely normal.

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Common reasons (other than pregnancy)

When to see a doctor urgently

Rule out pregnancy first. If there is any chance of pregnancy, take a test. If periods are repeatedly late without pregnancy, a doctor can check hormones and thyroid. MedDroid gives general information, not a diagnosis.

Frequently asked questions

How late can a period be before I worry?

A few days late is very common and usually nothing. If it is more than a week late and pregnancy is possible, take a test; if periods are repeatedly irregular, see a doctor.

Can stress stop my period?

Yes — significant stress can delay or even skip a period by disrupting the hormones that trigger ovulation.

I have no period but tests are negative — why?

Common reasons include stress, weight change, PCOS, thyroid problems or perimenopause. If it continues for 3+ months, get checked.

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Sources & further reading

Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.