Pre-pregnancy weight

  • Maternal pre-pregnancy weight is important for a healthy pregnancy.
  • Women who are underweight before pregnancy have an increased risk of preterm delivery and delivering small (small- for gestational-weight) babies.
  • Women who are overweight before pregnancy have a higher risk of developing pre-eclampsia and gestational diabetes. In addition, their babies have a higher risk of being born with a neural tube or congenital heart defect.