Can the fetal heartbeat be heard at one month of pregnancy?

Aug 12, 2025 Source: Cainiu Health
Dr. Zhang Lu
Introduction
Under normal circumstances, a fetal heartbeat usually cannot be heard during the first month of pregnancy. It is important to rest adequately in early pregnancy and avoid excessive fatigue and strenuous activities. Maintain a balanced diet and supplement essential nutrients, such as folic acid. Attend regular prenatal checkups at the hospital and follow medical advice to monitor embryonic development. If symptoms such as abdominal pain or vaginal bleeding occur, seek medical attention promptly.

Generally, the fetal heartbeat cannot be heard during the first month of pregnancy. The detailed explanation is as follows:

During the first month of pregnancy, the embryo is still at a very early developmental stage. At this time, the fertilized egg has just completed implantation and is primarily undergoing cell division. The heart has not fully formed, and fetal heartbeats have not yet begun. Even with ultrasound examination, it is difficult to clearly observe the heart structure, let alone hear the fetal heartbeat using a stethoscope or other devices. Only as the embryo continues to grow, around 6-8 weeks of pregnancy, will the heart structure gradually develop completely and fetal heartbeats begin to occur. At that point, the heartbeat can be detected through examinations such as ultrasound. Therefore, the fetal heartbeat usually cannot be heard during the first month of pregnancy.

In early pregnancy, it is important to rest adequately and avoid excessive fatigue and strenuous activity. Maintain a balanced diet and supplement necessary nutrients, such as folic acid. Attend regular prenatal checkups at the hospital, following medical advice to monitor embryonic development. If abnormal symptoms such as abdominal pain or vaginal bleeding occur, timely medical evaluation is necessary. Maintaining a positive mindset and avoiding excessive anxiety will provide a stable environment for embryonic development.

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