The fetus may obtain energy from the body's fat storage. A lady will normally lose fat storage if she does not acquire any weight during her pregnancy. She may normally have a lower body weight after pregnancy than she had before getting pregnant. In addition, the uterus grows during pregnancy, requiring more blood and nutrients to supply it, which can lead to weight loss. Losing weight during pregnancy is normal. As you become pregnant, your body starts making new cells, growing tissues, and opening up space for the baby with what remains of your pre-pregnancy body mass. All of this needs food to grow and mature. You need to eat more during pregnancy because your body needs extra nutrients to support the development of your baby. You should avoid losing weight too fast since this may lead to health problems for you or your child. The best way to keep up with your pre-pregnancy weight is by eating about 0.5-1 kilo (1-2 pounds) more than you did before becoming pregnant. However, this is only half of the story. Pregnancy is also known as a "metabolic" state where your body changes how it processes food. Your body becomes more efficient at using glucose (a type of sugar) for energy instead of storing it as fat. This is why women tend to lose weight even though they are eating more than ever before.