In the case of twin pregnancies, there is a higher chance of premature delivery compared to singleton pregnancies. Approximately 50% of twins are born before 37 weeks gestation. Premature birth can occur due to various factors such as inadequate space in the womb, placental problems, or early labor. The exact delivery time for twins can vary depending on individual circumstances and medical interventions. It is important for expectant mothers of twins to receive regular prenatal care and closely monitor their pregnancy to ensure the best possible outcome for both babies.