When does the newborn stage end


So my little girl was born at 34weeks and 4 days and she is now 6 weeks old when does this newborn stage end it's seriously driving me nuts my oldest was out of the new born stage around 2-4 weeks but she was also a week late. I just want to know if I can expect an end to this stage anytime soon I don't know if I can endure another month or two of her being in the newborn stage.