The timing for when a bride should cut her hair before her wedding largely depends on individual factors such as personal preferences and desired hairstyle length. However, it is generally recommended to have any major haircut done at least four weeks before the big day. This will allow enough time for any adjustments or modifications if needed and provide ample time for styling trials leading up to the wedding date. It's crucial not to leave any drastic changes until immediately before because if something doesn't turn out as expected, it could become a source of stress or disappointment. Planning ahead and allowing enough time will ensure that you feel confident and comfortable with your haircut on your wedding day.