A new pregnancy can affect the fetus if you have more severe diarrhea every day. Because diarrhea will lead to stomach pain, stomach pain is too obvious, will lead to uterine spasms, convulsions, contractions, will increase the chances of miscarriage, or frequent diarrhea, resulting in the nutrients within the food can not be fully absorbed, to the fetus will cause malnutrition, will be prone to affect the growth and development of the fetus, resulting in fetal growth, developmental delay, and other phenomena occur. During pregnancy, you should take the right amount of nutritional supplements in order to promote the growth and development of the fetus. So the symptoms of diarrhea, should be timely examination to determine the cause of the disease, symptomatic treatment to control the development of the disease, it is recommended to pay attention to keep warm, light diet, do not eat stimulating food, to alleviate the symptoms of diarrhea.