If Mother Does Not Eat Enough During The Pregnancy. Extreme fatigue and dizziness are other classic symptoms of not eating enough while pregnant. During pregnancy you should be gaining weight and if you don’t lose weight, you may still be malnourished.

Occasionally, hormonal and other changes during pregnancy can cause women with diabetes to develop. The iron in prenatal vitamins and other things can cause constipation during pregnancy. It is a sign you are not eating enough during pregnancy and you should carefully monitor how much you are eating.