Pregnant women who drink carbonated beverages have an impact on the fetus because carbonated beverages include carbonated water, phosphate, sodium bicarbonate, caffeine, artificial colors and flavors, which can affect the health and development of the fetus, especially in the first trimester of pregnancy, if they drink carbonated beverages regularly, it will increase the incidence of fetal malformations. In the middle of pregnancy, if you drink too many carbonated drinks, the phosphate in carbonated drinks will affect the absorption of calcium, resulting in poor fetal bone development and affecting the health of the pregnant woman. It may cause osteoporosis and calcium deficiency in pregnant women, which may lead to calf cramps, and in serious cases, it may affect the fetus, leading to fetal growth retardation or fetal development stagnation. If carbonated drinks are only taken out of the refrigerator, when they are too cold, they will stimulate the uterus and cause contractions, which may cause uterine chills or stomach pain.