Usually in the 5th month of pregnancy, the mother can feel slight fetal activity, the exact perception of fetal movement varies from person to person. In general, fetal movement in the 5th month of pregnancy is not yet regular and relatively mild. According to different descriptions, it can be like a small fish swimming in the stomach, like a pulse beating on the abdominal wall, like a bird flapping its wings, like a butterfly flapping its wings, etc. The sensation of fetal movement is mainly caused by the fetus reaching, kicking or impacting the uterine wall in the womb. If a pregnant woman is thin and has a thin abdominal wall in her fifth month of pregnancy, she will feel the fetal movement more obviously and notice it earlier. If a pregnant woman has a thicker abdominal wall and more amniotic fluid, she may feel the fetal movement later and feel it less obviously. In addition, the activity of pregnant women, tension, excessive fatigue, smoking, etc. can affect the fetal activity. Therefore, pregnant women can feel the fetal movement at the same time, so that they can detect the change of fetal movement more clearly. The number, speed and strength of fetal movements can indicate whether the fetus is normal or not. If you do not feel the fetal movement in the fifth month of pregnancy, it is recommended to visit the hospital to have your fetal heart monitored by a doctor to determine the cause and deal with it accordingly.