Can you hear the fetal heartbeat through the belly?
In general, whether fetal heartbeat can be heard through the abdomen depends on the specific gestational week and the use of appropriate instruments. The details are as follows:

During early pregnancy, the fetal heart is small and the heartbeat is faint. Additionally, the fetus lies deep within the uterus, making it impossible to detect the heartbeat by simply listening with the ear. At this stage, ultrasound equipment is required to observe cardiac activity via sound wave reflection.
In the middle and late stages of pregnancy, the fetal heart has developed further and the heartbeat becomes stronger. Using a fetal stethoscope or electronic fetal monitor, a clear and rhythmic heartbeat can be heard at an appropriate location on the pregnant woman’s abdomen. However, without such tools, the heartbeat is still difficult to hear directly due to obstruction by amniotic fluid and abdominal tissues.
Avoid frequently attempting to listen to the fetal heartbeat by placing your ear against the abdomen, as this may cause anxiety if no heartbeat is detected. If monitoring the fetal heartbeat is desired, it is recommended to use professional devices under medical guidance or attend regular prenatal checkups at a hospital. In the middle and late stages of pregnancy, pay attention to fetal movements at a fixed time each day; changes in fetal movement patterns can serve as an indirect indicator of fetal well-being. Seek prompt medical evaluation if any abnormalities in fetal movement occur, to ensure fetal health.