In the 38th week of pregnancy, it is common for pregnant women to notice a decrease in baby movement. There are several reasons why this may occur. Firstly, as the baby grows and takes up more space in the womb, there is less room for them to move around freely. Additionally, the baby's sleep-wake cycles become more established, leading to periods of increased activity followed by periods of rest. Furthermore, as labor approaches, the baby may drop lower into the pelvis, resulting in a change in their position and potentially reducing their movements. However, it is important to note that if you notice a significant decrease or absence of fetal movement, it is crucial to contact your healthcare provider immediately as it could be a sign of distress. They will be able to assess your situation and provide appropriate guidance and monitoring.