When i upgrade to the new iPhone tomorrow will i have all my photos?

I do not use photo stream i actually use the other what though I'm not sure what to call it (maybe iCloud). I log into iCloud and see all my pictures there so if i upgrade my phone will anything change?

If you keep the same Sim card you shouldn't have a problem

Backup to iCloud or backup using iTunes. If you have slow internet, use iTunes.

Make sure photostream is on.

When you get the new phone, restore to that phone.

Hopefully. I mean, I don't use Apple, but you should see all your info synced to your new iPhone.