Pregnant women can take calcium tablets, it is best to take them in the middle of pregnancy, that is, from 4 to 6 months of pregnancy. The fetus develops faster in the middle of pregnancy, which can easily cause calcium deficiency leading to leg cramps, leg pain, back pain and other discomforts of pregnant women, and the lack of easy to affect the baby’s development, especially bone development. The specific measurement of calcium tablets should be determined according to the amount of calcium deficiency of pregnant women, it is best to go to the hospital to check the trace elements and take calcium tablets reasonably according to the specific situation, so as not to take too much to cause toxic symptoms. It is advisable to supplement AD drops and also to get more sunlight to promote calcium absorption. Pay attention to the diet during pregnancy, eat more food with high calcium content, such as pork ribs soup, shrimp skin, etc. It is recommended to diversify the diet, not partial food, anorexia, nutritional single easily cause fetal stunting.