Labor pains that start before 37 weeks of pregnancy but don't coincide with cervical changes are referred to as threatened preterm labor. Preterm birth occurs in around 25–30% of cases with threatened preterm labor. Objectives: The aim of the present study was to early predict preterm delivery in patients with uterine contractions, and to evaluate and compare the sensitivity of uterocervical angle and cervical length to anticipate premature labor. Patients and methods: This prospective observational cohort The Obstetrics and Gynecology Department of Zagazig University Hospital conducted the study. and at Al-Sahel Teaching Hospital, Egypt, during the period from April 2022 to October 2022 and performed on 70 pregnant women who were susceptible to premature labor between 28 and 37 weeks of gestation. The evaluation of eligible participants included collecting a thorough medical history, having a qualified sonographer do a complete anatomical scan to establish their gestational age and rule out any structural defects, and having cardiotocography performed to track changes in fetal heart rate and variability. Transvaginal ultrasound was done for evaluation of the uterocervical angle and cervical length were measured. Results: The most common risk factor in the studied group was polyhydramnios and previous history of preterm labor respectively. We found that the cut-off points of cervical length and uterocervical angle were <35.5mm mm and ≥105 degree respectively in predicting preterm birth. Results of the study showed that the cervical length was more accurate than uterocervical angle. Conclusion: When preterm labor is threatened, measurements of the cervical length and uterocervical angle can both be thought of as helpful instruments for forecasting preterm birth.