17 weeks pregnant can not feel the fetal movement is generally normal, but does not rule out some diseases caused by, such as fetal hypoxia, embryonic arrest, etc., should be timely consultation to identify the cause. 1. Normal phenomenon: most primigravid women in 18-20 weeks of pregnancy to feel the fetal movement, the beginning of the fetal movement is usually not obvious, if not, so pregnant women can not feel the fetal movement, which is normal. In addition, some obese pregnant women, its stomach fat is thicker, fetal movement, pregnant women may not feel. 2. Pathological factors: (1) fetal hypoxia: when the fetus appears umbilical cord around the neck, umbilical cord torsion, umbilical cord is too long or too short and other reasons can lead to fetal hypoxia, at first for the frequent fetal movement, and gradually progressed to the fetal movement can be reduced to reduce the disease weakened, and gradually let the pregnant woman can not feel the fetal movement. At this time, pregnant women need to pay attention to the number of fetal movement, once the fetal movement is obviously abnormal, should consult a doctor in time. (2) Embryonic Fertilization: Embryonic Fertilization is a state in which the embryo can be seen but stops developing. If there is a phenomenon of embryonic arrest, pregnant women may not feel the fetal movement. If the fetal movement disappears for a long time, it means that the embryo may have stopped developing, and it is necessary to complete the relevant examinations and terminate the pregnancy as soon as possible. If you can’t feel fetal movement at 17 weeks of pregnancy, you should consult a doctor to find out the cause of the problem and actively cooperate with the doctor’s treatment after eliminating physiological factors.