When pregnant women catch a cold, there may be abnormalities in fetal movement. This is because symptoms such as fever, nasal congestion, runny nose, and headache can occur after catching a cold, leading to discomfort. Nasal congestion can cause insufficient oxygen supply in the pregnant woman, thereby affecting the nourishment to the baby. This can also increase fetal movements. In addition, nasal congestion may lead to hypoxia in pregnant women. These conditions are detrimental to the health of both the fetus and the pregnant woman. It is advisable to visit the hospital timely for examinations and symptomatic treatment, and oxygen therapy might be necessary if required.