Fetal movement like shivering in late pregnancy is most likely normal and very rarely due to disease factors.
Fetal movement like shivering is a perceptual manifestation, which may be caused by the fetus hiccups in the uterus or a greater floating, the pregnant woman feels that the fetus behaves like shivering. At this time, it is recommended that pregnant women do a good job of counting the fetal movements as well as monitoring the fetal heartbeat, and if it is normal, there is no need to be overly anxious.
However, there are rare cases where frequent fetal movement is caused by intrauterine oxygen deprivation, which in turn manifests itself as shivering symptoms.
If you find that your baby is shivering for a long period of time, it is recommended that you consult a doctor to find out the cause of the shivering and treat the symptoms.