Is fatigue a common symptom during early pregnancy?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Yes, fatigue is one of the most common early pregnancy symptoms, often appearing within the first few weeks after conception. Rising progesterone levels, increased blood production, and the body's energy demands to support a developing embryo can leave you feeling unusually tired, even after a full night's sleep.

However, fatigue is a nonspecific symptom and can also point to other conditions like anemia, thyroid issues, or stress. If you're unsure what's behind your exhaustion, taking a free, instant, online symptom check can help you clarify what your body may be signaling and guide your next steps—whether that's a pregnancy test, a doctor's visit, or simple lifestyle adjustments.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Fatigue is a frequent experience for many women in early pregnancy. Research shows that it is a common symptom during the first trimester.

First Trimester Fatigue: One study highlights that fatigue often occurs in the first trimester. This is when the body is undergoing many changes to support the growing baby.
Exploratory Findings: Another study explored how women feel tired early in pregnancy. It found that many women report feeling more tired than usual.
Comparative Insights: A third study compared fatigue levels in pregnant women. It confirmed that fatigue is a noticeable symptom during pregnancy.

These studies suggest that feeling tired is normal and expected in early pregnancy. If you're experiencing unusual fatigue or other concerning symptoms, you can use our free symptom checker to better understand what might be happening with your body. It is important for pregnant women to get enough rest and take care of their health during this time.

(References)

Poole CJ. (1986). Fatigue during the first trimester of pregnancy. Journal of obstetric, gynecologic, and neonatal nursing : JOGNN, 3639925.
Reeves N, Potempa K, & Gallo A. (1991). Fatigue in early pregnancy. An exploratory study. Journal of nurse-midwifery, 1757816.
Behrenz KM, & Monga M. (1999). Fatigue in pregnancy: a comparative study. American journal of perinatology, 10458531.

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