1. To compare pregnancy outcomes between the early screening group and the control group. Maternal outcomes will include the development of pre-eclampsia, pregnancy induced hypertension, maternal weight gain during pregnancy, and 3rd or 4th degree perineal lacerations. Perinatal outcomes will include rate of miscarriage, preterm delivery, intra-uterine growth restriction, intra-uterine fetal death and neonatal metabolic complications (hypoglycemia, hypocalcaemia or hyperbilirubinemia).