Taking too many calcium tablets during pregnancy may have an effect on the fetus. If you take more calcium tablets during pregnancy, then it may cause macrosomia, aging of the placenta and affect the growth and development of the fetus. Excessive calcium supplementation rarely occurs during pregnancy because the amount of calcium needed is greater during pregnancy. If you accidentally take too much calcium, then it may be easy to cause excessive growth of the fetus and the appearance of a giant baby. At the same time, too much calcium in the pregnant woman’s body may also lead to calcification of the placenta and placental hypoplasia, further affecting the growth and development of the fetus. It is important to take calcium supplements during pregnancy, but it is also important to pay attention to the amount of calcium and take reasonable calcium supplements under the guidance of your doctor. If there is any abnormality during pregnancy, it is recommended to consult a doctor promptly.