Healthy Eating Guide: 40 Days in Early Pregnancy Early pregnancy is very important for both pregnant women and fetuses, especially the first 40 days. Pregnant women need to pay special attention to their diet to ensure the healthy growth of their children. The following is a healthy eating guide for the first 40 days of pregnancy, which I hope will be helpful to pregnant women. Drink more water and maintain fluid balance During pregnancy, a woman\’s body needs more fluids. Therefore, pregnant women