You must avoid driving through bumpy roads, but it can not cause miscarriage in typical cases. It depends upon the extent of the damage. Going recklessly through a bumpy road would put immense stress on sensitive areas and lead to extreme injuries. You can reduce the risk of injury by driving on mild terrain. If you drive carefully, even through bumpy roads, it is possible to reduce the risk of danger. You must take all safety measures while driving through bumpy roads to protect the life of your baby.