I'm sorry if you have AA on the bubble there is ABSOLUTELY NO WAY you can fold. You can play it two ways raise 4x bb or shove. Raising 4x bb you force your self with basically shoving flop no matter what it is and hoping a stack didnt call it and hit. Or shove and hope you get called with pp or ak ect and if thats the point you got it in good and theres nothing you cant do. But in ANY case you CANT fold.