Needing opinions

So I had a late “halfway” ultrasound due to my Doctor’s office and the imaging place having communication issues. Well I went yesterday to have it done and was told that I am measuring 28wks and 6 days instead of 27&6day. A week ahead than I’ve thought. Do y’all think this means that my due date will be sooner? Or is the baby just measuring big? I know these ultrasound are more precise so I’m wondering if that determines my actual gestation and due date. I might sound clueless, but I’m just curious to know what you ladies think.