Prediction of the Onset of Term and Preterm Labour

Group 1 inclusion criteria * Pregnant woman * 36 weeks gestational age Group 1 exclusion criteria * Risk factors for preterm birth (previous preterm birth or second trimester loss, cervical suture, previous cervical treatment, previous full dilatation caesarean, transabdominal suture). * Planned Caesarean Section * Any high-risk pregnancy conditions such as PET (pre-eclamptic toxaemia), OC (Obstetric cholestasis), FGR (fetal growth restriction) * Unable to read written English * Unable to provide informed consent * Poor attendance with antenatal care * Uncertain gestational age Exclusion criteria for subset within group 1 using heart rate monitor * Does not have access to an Apple iPhone or iPad with Bluetooth 4.0 (or later) and iOS 10.0 (or later) * Skin condition where there is sensitivity to wearing a skin monitor * Known heart condition or use of a pacemaker * Taking any medications that may affect heart rate Group 2 inclusion criteria * Pregnant woman * Presenting at or after 24 weeks gestational age and before 36 weeks / Symptoms of threatened preterm labour (abdominal pain) with fetal fibronectin level ≥ 50 ng/mL and without rupture of membranes * In-utero transfer with suspected threatened preterm labour with evidence of cervical shortening and dilatation with or without a fetal fibronectin * Rupture of membranes with or without contractions Group 2 exclusion criteria * Any high-risk pregnancy conditions such as PET (pre-eclampsia), OC (Obstetric cholestasis)…