Adjustment of Status - I-485

Had my interview today at the Reno FO No desicion was made … interview went well .. most of question were asked to me .. only asked my Husband for his name . Asked how we where we met and when asked my name my address and Mamés of my children then the yes and no questions .. asked if I had anything g to give him and I gave him my medical exam and bank statements and pictures … he looked thru pics and have them back and he kept all the other documents . He said he had to wait for background check before he made a desicion on my case …. The one thing I find weird is that he didn’t take my picture or my fingerprints .. is that normal? Over all it went well and smooth .