Preterm birth is defined as delivery prior to 37 completed weeks gestation. It is a leading cause of perinatal morbidity and mortality globally 1 with the incidence in Ireland approximately 7%. While advancements in perinatal care have improved survival rates for babies born early, significant complications can arise from pre-term birth including the possibility of neurodevelopmental delay, gastrointestinal and respiratory problems. Pre-term delivery can also have significant psychological and financial implications for families affected.2 Seventy percent of pre-term births occur spontaneously3 while in some cases early delivery may be medically indicated in the fetal or maternal interest.