If the calcium level in the body is significantly higher after the trace element test during this period, it is not possible to take calcium tablets for calcium supplementation, which will easily cause an increase in the concentration of calcium in the body of the pregnant woman and will cause certain damage to her health. If a pregnant woman has a significant decrease in the trace element test and has symptoms of calcium deficiency, she can take calcium supplements according to the specific situation. Pregnant women need to pay attention to eating more calcium-containing foods, such as fish, shrimp, milk and other foods in their diet. Pay attention to eating foods rich in vitamin D and fresh vegetables and fruits to promote the absorption of calcium, as well as frequent sunbathing, which can play an effective role in improving calcium deficiency.