Exposure to loud sounds during pregnancy can potentially have an impact on your baby's hearing and brain development. The movement of your baby during those two hours indicates that they were able to perceive the sound. However, it is important to note that the effects of loud noises on fetal development are not fully understood. Studies suggest that prolonged exposure to excessive noise levels may increase the risk of hearing problems in newborns, but more research is needed to establish a definitive link. It is advisable to avoid exposing yourself and your baby to loud noises whenever possible during pregnancy. If you have concerns about your baby's hearing or development, it is best to consult with your healthcare provider for further evaluation and guidance.