Please help me with photo backup…

I have a OnePlus 3, which I have loved until today. It ran out of battery, and when I turned it back on, my normal pattern password wasn’t working. I contacted OnePlus, and they said that there isn't anything they can do. There is no SD card, I don’t have an automatic photo backup app, there isn’t a “Forgot my Password” option, and I don’t have USB debugging enabled. I have uploaded older pictures to Drive, but I haven’t uploaded pictures from this past Thanksgiving. I took pictures with my grandparents, and my grandmother passed away a couple weeks ago. I cannot stand the idea of losing those pictures. Does anybody have any ideas about ways I can get them? I am desperate; I’m willing to try absolutely anything.