JJ in first hand of $11 SnG

[Patriarch]

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (10 handed) converter

UTG (t800)
UTG+1 (t800)
UTG+2 (t800)
MP1 (t800)
MP2 (t800)
MP3 (t800)
CO (t800)
Button (t800)
SB (t800)
Hero (t800)

Preflop: Hero is BB with J[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#666666">5 folds</font>, MP3 calls t15, CO calls t15, Button calls t15, <font color="#CC3333">SB raises to t100</font>, <font color="#666666">1 fold</font>, MP3 folds, CO folds, Button folds.

Final Pot: t160

I felt bad about this fold, but wasn't sure what else to do. I didn't want to call and then have to fold to an overcard on the flop. Maybe I should have called and bet out the flop if only one overcard came, then check/folded to a raise or call.
It would have been a big mistake to push, right?