Twins With Specific vs. Traditional Fetal Growth Charts

Participants in this arm will have their fetal growth assessed using twin-specific growth charts. These charts account for twin gestation norms and may influence clinical decision-making regarding growth restriction and perinatal management. The intervention does not involve any direct physical procedure or device but rather a change in the interpretation framework of routinely collected ultrasound data.

Participants in this arm will have their fetal growth assessed using singleton-based growth charts. These charts are commonly used in standard practice but may overestimate growth restriction in twin pregnancies. The intervention does not involve any direct physical procedure or device but alters the interpretation framework for standard prenatal ultrasound findings.