OK first of all i would say that calling is not an option here at all, you either fold the hand or push all in and hope to win the blinds. Were you short handed at the table, were you up front or in late position when you went all in? Most pros when they go all in with a short stack would rather have a hand like 8-9 suited, then the A-9 here. Since most hands that will call you will have your hand crushed with a hand like A-J, or a pair like 9-9's. But you can't wait for aces or kings in a spot like this, sometimes you just make an all in and you end up getting called by the better hand. Now in a spot where you had 3 limper's in the pot and you choose to go all in, would not have been a great move since you don't have enough chips to price anyone out of the pot, but even with a single ace you were still only a 70-30 dog, so better luck next time.