Oh wow, I feel you. I have mine next week as well. I am sorry I didn't even think about it. Stress compounded onto stress is never a good thing. Don't worry, just get off here and search your little heart out. Honestly, I was sobbing, my heart was broken and I had given up on my ball python an hour into looking. I had torn every piece of my apartment apart but something forced me to keep looking. I gave up emotionally but I kept moving like a robot and 6 hours later I found him underneath a water bowl in my female Burm's enclosure. I have no idea how or why he got in there but I am so glad I looked. So just breathe, look everywhere, look again, and stay calm for your pet.
I have the best hopes and wishes for you.