Early bet/3bet with 88 on the flop

[durron597]

Stars $15+$1 Turbo. Very early. I don't want to invest a lot of chips without seeing if my 88 is an overpair or a set so I just complete preflop (though of course I always end up doing so). Did I get too aggressive here?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (7 handed) converter

Hero (t1470)
BB (t1580)
UTG (t1390)
MP1 (t1830)
MP2 (t3500)
CO (t1630)
Button (t2100)

Preflop: Hero is SB with 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, MP2 calls t30, CO calls t30, <font color="#666666">1 fold</font>, Hero completes, BB checks.

Flop: (t120) 5[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets t120</font>, BB folds, MP2 folds, <font color="#CC3333">CO raises to t300</font>, <font color="#CC3333">Hero raises to t1440</font>, CO calls t1140.

Turn: (t3000) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

River: (t3000) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t3000