Bridal Portraits after Wedding?

SOOO I didn't realize this was a thing... and I have already been married for a month now, but I was wondering if it would be a good idea to do another photo shoot in my wedding dress before I get it preserved? I did fake flowers so I still have my bouquet and I did my makeup myself, the only thing would be the hair. I don't want to pay to have my hair done again so it would have to be a different style than on the day of my wedding. Would that be weird? My mom is a armature photographer so she would do it for me for free for her portfolio but was wondering if it is worth it(just to have for me) or would it be weird cause you would be able to tell they weren't taken on the same day?