Research has shown that a woman's lifestyle during pregnancy can predict the future health of a mother and her child. Improving the health of a mother during pregnancy can lead to the best health outcomes for mother and child in the short and long-term period. Currently there is a lack of understanding about how best to support women to achieve healthy weights during pregnancy. The aim of this study is to understand if additional lifestyle support, such as discussions about healthy eating and physical activity provided by a healthcare provider throughout pregnancy can help women achieve weights concordant with gestational recommendations.