Left my iphone 5 at school and now i can't find it?

I was leaving school (there was barely anyone there because the bell rang and most people went home) i set my phone down somewhere as i was talking to a teacher but i can't remember where. I only realised i didn't have my phone when i left the school so i walked back around 15 minutes later and searched everywhere i could for it. I couldnt find it so i asked the cleaner if she saw it and she said no. Then i went to the secetary office where the lost and found is and she said she didn't see it/no one handed it up, she rang it for me to see but my phones turned off at the moment. Then i went to my vice principals office and he said he didn't see it but he'd look for me. I left after that.

do you think it could still show up somewhere? I'm really upset and scared that someone might've already stolen it

i have a passlock and icloud/apple id. I also have Find My iPhone installed on my phone but i can't track it because its turned off. If its stolen and the person turns it on will it be possible to track them? Because my dad said he would go to the location its at and ask for the phone back

please help me!

don't answer if you don't have any helpful advice /just gonna say 'its gone forever' tho because thats not helping

I'm sorry about your phone. Just keep trying to call it and I'm sure someone will find it and pick up. If you have a pass lock your phone is pretty much useless to the person who finds it. I'm sure someone will find it and turn it on eventually. Good luck. If for some reason you can't find it you could always get a pay as you go phone they are pretty cheap.

It's gone… Yep its stolen

Call the service provider to track it with gps location.