In order to request my name I need to have the old name which would be my husband's last name and the requested name. I been married for about a month now. I was married in St Paul, Minnesota. I heard that I didn't have to change my name even if I requested it on the marriage certificate as long as I do not change my social securtiy card, driver's license, etc and just go by my old name. Is there a time limit that I have to legally change all of my documents? I don't want to break any laws.