You can eat a small amount of crab occasionally or try not to eat crab in the second month of pregnancy. Crab is rich in protein, as well as calcium, copper, zinc, magnesium and other mineral nutrients, and also contains relatively high cholesterol. Eating small amounts of crab occasionally during pregnancy can provide the nutrients needed by the mother and fetus, but eating large amounts can easily lead to indigestion or elevated cholesterol in pregnant women. The crab is cold in nature and has the effect of activating blood circulation. Eating too much crab in early pregnancy may cause pre-eclampsia, which is detrimental to the development of the embryo. The diet during pregnancy should pay attention to nutritional supplements to meet the needs of fetal growth and development. The diet should be light, nutritious and easy to digest. Avoid cold, spicy and stimulating foods.