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Reasons For Getting Period Early? Possible Causes, What’s Normal, And Signs It’s Abnormal?


It can be puzzling and concerning when your period arrives earlier than expected. There are many possible reasons for getting your period early, some temporary and others requiring medical attention. Understanding the most common causes and when to see your doctor enables insight into your cycle and health.

Reasons Your Period Arrives Early Every Month 

The average menstrual cycle lasts 24-38 days from the first day of one period to the next. Ovulation occurs around day 14 in a 28-day cycle, followed by the luteal phase leading up to the next period. Cycles range from 21-35 days normally.

Common Causes Of Early Periods

Getting your period significantly earlier than your individual cycle length may signal an underlying cause like hormone changes, birth control, thyroid issues, etc. While an occasional early period can be normal, frequent or severe early bleeding deserves medical evaluation.

Common Causes Of Early Periods

Hormonal fluctuations – Changes in reproductive hormone levels can disrupt cycle regularity.

Birth control effects – Certain contraceptive pills or IUDs can sometimes cause unexpected bleeding.

Pregnancy issues – Miscarriage, termination, or ectopic pregnancy may prompt early bleeding.

Thyroid dysfunction – Both hypothyroidism and hyperthyroidism impact menstrual cycles.

Uterine issues – Fibroids, polyps, or anatomical abnormalities can prompt irregular bleeding.

Medications – Anticoagulants, chemotherapy drugs, and antidepressants may cause early periods.

Stress – Physical or emotional stress affects hormone signaling, disrupting cycle timing.

Rapid weight loss – Losing substantial body fat quickly impacts ovulation, shortening cycles.

Pelvic infections – STIs and vaginal infections cause abnormal uterine bleeding.

Bleeding disorders – Diseases like von Willebrand disease increase heavy irregular periods.

When Early Periods Are Normal?

Here are some key points on when getting your period early can be considered normal:

? Occasionally getting your period a few days earlier than normal is usually not a concern.

? Early periods are more common and normal in the first year after a girl starts her period as cycles regulate.

? Slightly early periods with light, normal flow are less likely to indicate a problem.

? If your cycles eventually normalize to your regular timing, an isolated early period is not alarming.

? Early periods with no other symptoms like pain, heavy bleeding, or weakness are typically not as worrisome.

? If you have ruled out potential causes like birth control, medications, or thyroid issues, an early period may just be unexplained temporary variation.

? After the first year of menstruation, early periods are less normal past puberty into adulthood.

? Seeing your doctor is advisable

Related: Ovulation Signs Over: Recognizing Key Indicators

When To See Your Doctor?

Consult your gynecologist promptly for:

  • Period arriving over 7 days early repeatedly
  • Very heavy bleeding and large clots
  • Bleeding more frequently than every 21 days
  • Signs of pregnancy complications
  • Concerning symptoms like fatigue, dizziness
  • Failed management of medication

Testing for hormonal imbalances, gynecologic infections, uterine issues, and bleeding disorders can determine causes for treatment.

Seek Emergency Care For

◾️  Prolonged heavy bleeding soaking over 1 pad/hour

◾️ Lightheadedness, rapid heart rate, chest pain

◾️ Severe abdominal pain

◾️ Fever over 101 F

Which may indicate a ruptured ovarian cyst, miscarriage, or life-threatening infection requiring urgent care.


In summary, getting your period earlier than normal should not be dismissed as it may signify an underlying condition. Monitor cycles and seek medical care for frequently early or excessively heavy periods to determine the cause and appropriate treatment. This allows you to maintain menstrual health and comfort.


1. Is getting your period 2 weeks early normal?

No, getting your period 2 weeks earlier than your normal cycle length is not typically normal and should be evaluated by your OB-GYN.

2. Can stress cause you to get your period early?

Yes, high stress can disrupt reproductive hormone signaling leading to irregular periods that come earlier or more frequently than usual.

3. What vitamin deficiency causes early periods?

Vitamin B12, vitamin D, and iron deficiencies may contribute to heavy, frequent periods. Supplements may help restore regularity.

4. Can thyroid issues cause you to get your period early?

Both hyperthyroidism and hypothyroidism can cause irregular cycles with periods coming more frequently or earlier. Treating the thyroid condition helps normalize menstruation.

5. Is it normal for teenagers to get their period early?

Yes, it is very common for teenage girls to experience irregular cycles and unpredictable bleeding as their cycles mature in the first few years after their first period

Dr. Harold Gojiberry is not just your ordinary General Practitioner; he is a compassionate healthcare provider with a deep commitment to patient well-being and a passion for literature. With extensive medical knowledge and experience, Dr. Gojiberry has made a significant impact in the field of healthcare, particularly in the area of liver diseases and viral hepatitis.

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