What happens if you eat too much while pregnant? Most women tend to gain more weight during pregnancy because of eatingsurplus food. Binge eating on the pretext that they should eat for two during pregnancy can lead to serious concerns later on. ... Consuming excess food while pregnant can negatively impact a baby's health as well. Can Overeating affect pregnancy? According to the National Academy of Sciences, pregnant women should gain between 15 and 35 pounds. ... Studies show that improper nutrition during pregnancy can affect your child's risk for developing problems as an adult, including heart disease, diabetes, high blood pressure, and obesity. just sharing lng po galing google hehe..