I don't play on a console, but I remember hearing that for other Bethesda games, having a high amount of save files can do that. Try getting rid of some of your save files and then clearing the cache on your system. By clearing the cache, you will have to re-download any patches for the game.
It is not the number of saves that one has, it is how many times a save slot has been written over that is the issue.
I save over previous saves though so I've only got my one save and then auto saves soooooo shouldn't it just count as one save?
It counts as one save. It also counts as the most dangerous way to play this game. First, saves that are written over and over and over again will corrupt. Plus, the game may glitch on you, going back to a save from before you got a quest is the best way to fix a quest glitch. Third, I can't count how many threads I have seen where the player had no problems other than painting themselves into a gaming corner and the only way out is to load an earlier save, and they can't. It has been this way since Morrowind.
Plus, turn off the Autosave features and never load an Autosave, ever.