Monash University Nov 19 2025 Around two-thirds of pregnancies have weight gain that is more or less than recommended and is associated with complications such as preterm birth, large birth weight, and admission to intensive care. The findings are part of a Monash University-led systematic review of data from 1.6 million women, published by The BMJ. Gaining too much or too little weight during pregnancy, known as gestational weight gain or GWG, represents combined growth of mother and baby, and