Reduced foetal movement - Causes
A normally growing and healthy baby will usually be active throughout pregnancy. Even though the movements should reduce slightly towards term, this should not be sudden and marked. There may be obvious reasons to suspect that the baby is not fine when movements reduce e.g. when the pregnancy is complicated by hypertension or slow growth. Sometimes an infection could be the reason why the baby is not active, this could occur when your waters break or occasionally without breakage, or as a result of an infection in the mother. There are medical problems like diabetes that can cause loss of foetal movement. Bleeding in pregnancy may account for loss of movement, occasionally, this may only manifest with abdominal pain.
Attribution: Avallain