Congratulations on your fiancee becoming your wife, unfortunately for you in the midst of this was the accident. Insurance normally follows the vehicle (owner) first and driver second. So your wife's insurance is likely to cover the damage done to the other party's car since you were at fault but did have your fiancee's permission to drive.

If you were cited by the police for driving without insurance you should call the number listed on the citation and discuss what your penalty will be. The penalties differ depending on what state you are in. It could be a fine, mandatory insurance certificate, license suspension or more. If you were not cited count yourself lucky but you could still check with your state's DMV website to see if they list what penalties you could have encountered. A car insurance quote can be found here.