Locked out of IOS 7 on my Iphone 4S
Okay, so usually I wait a bit before I do major updates but even now seems, once the update completed at the "swipe to setup" i'm promted to enter my passcode, here it's simply not accepting my old passcode at all. I'm 100% certain I didn't forget it since I use the phone daily, what should I do? I can't even restore from a backup as itunes insists I put in my passcode before it decides to restore or back up anythng from the backups section. Did my passcode get erased to some default or something?
I've also never used icloud before today so unsure if I can(and not sure how 100%) do that now persay. My last backup was 8 days ago so i'm not 100% distraught if I need to reset it but i'm just worried I might go through all this trouble and if I restore from backup it'll just run into this issue again.
iPhone 4S, iOS 7.0.6