During which months of pregnancy do fetal movements occur the most? During pregnancy, the baby\’s fetal movement is something that expectant mothers look forward to very much. As the fetus grows, fetal movements will gradually increase. But when are the most violent fetal movements during pregnancy? This article will introduce the regularity of fetal movements during pregnancy, the status of fetal movements during pregnancy, and other aspects. 1. Introduction to fetal movement patterns during pregnancy: Fetal movements of the baby during pregnancy are divided into two types: active fetal movement and passive fetal movement. In the early stages, it is difficult to grasp the timing of active fetal movement.