WTF do I do here? Frozen with 10 10

[HoldEmKillah]

This is my VERY first hand at the table and I land in the big blind. Pot is $560 when it gets to me, giving me ~4:1 odds. The only thing I do know is that CO (original raiser) is bad but can't recall anything else about him. I have no other reads whatsoever.

6max NL400

HERO (BB-$400)
UTG ($168)
All other stacks are essentially $400

HERO: 10 [img]/images/graemlins/club.gif[/img] 10 [img]/images/graemlins/diamond.gif[/img]

UTG limps, MP checks (posted blind OOP), CO raises to $25, Button calls, SB calls, HERO calls, UTG raises All In, MP folds, CO calls $143, Button calls $143, SB folds.

HERO ???

If this was NL1k I'd chuck this without even thinking about it. But since I know CO to be a donk and that this is NL400 on Party I can't help but think that I could be ahead to everyone except UTG here. I'm just so confused about button's flat call twice here (both CO and button quickly called w/o even thinking about pushing which makes me think that they don't have QQ-AA but rather AK/AQ/JJ/99/88/even AJs). Wouldn't button or CO push with KK/AA with all that action? Like I said, frozen.

Clearly calling is horrible unless it's for the sole intent to pull a Stop n Go but that option just don't fly here (or does it?). So it's push or fold I guess.

Is there ANY way I push here? Math experts?