How much energy does a mum to be need before her baby is born and after the birth?

During pregnancy, a mother typically needs an additional 300-500 calories per day to support the growing fetus, depending on the trimester. After childbirth, while breastfeeding, her caloric needs may increase further, requiring an additional 400-500 calories daily to produce milk. Overall, it's essential for mothers to focus on a balanced diet rich in nutrients to support both their health and that of their baby.