Background: Identifying sensory processing differences in children with sensory reactivity problems (both with and without prenatal and perinatal problems) is essential to providing interventions that enhance development and participation in everyday life. Methods: This study conducted a statistical analysis between the Sensory Profile-2 sensory questionnaire and the study variables: pregnancy, fertility treatment, delivery and prematurity (n=69). Results: This study yielded statistically significant differences in sensory processing at the visual level (p-value=0.003), in proprioception (body position) (p-value<0.001) and in emotional problems relating to stressful and traumatic pregnancy, prematurity (p-value=0.026) and high-risk pregnancy, respectively, among children with and without perinatal and prenatal problems. Conclusions: These findings confirm that there are differences in the sensory processing of children with sensory processing disorders who have suffered perinatal and postnatal problems compared to those who have not.