Was I too meek here with my pocket pair?

[Relentless]

I think lately I haven't been playing very agressive and was thinking I should have been able to extract more money from this hand. What do you think?

Texas Hold'em $1-$2 NL at Poker room 10 handed

BB ($14)
UTG ($11.50)
MP1 ($50.50)
MP2 ($111.50)
MP3 ($80.50)
MP4 ($58)
MP5 ($98
Hero ($69.25)
Button ($146.50)
SB ($54.25)


Preflop: Flop Flop Hero is in cutoff with Q [img]/images/graemlins/club.gif[/img] Q [img]/images/graemlins/diamond.gif[/img]
UTG folds, MP1 folds, MP2 bets $3, MP3 folds, MP4 folds, MP5 folds, Hero calls $3, Button folds, SB calls $2.50, BB calls $2.

Flop [board cards 5 [img]/images/graemlins/spade.gif[/img],J [img]/images/graemlins/spade.gif[/img],4 [img]/images/graemlins/club.gif[/img] ]
SB bets $3, BB folds, MP1 folds, Hero bets $9, SB calls $6.

Turn [board cards 5 [img]/images/graemlins/spade.gif[/img],J [img]/images/graemlins/spade.gif[/img],4 [img]/images/graemlins/club.gif[/img],8 [img]/images/graemlins/spade.gif[/img] ]
SB checks, Hero checks.

River [board cards 5 [img]/images/graemlins/spade.gif[/img],J [img]/images/graemlins/spade.gif[/img],4 [img]/images/graemlins/club.gif[/img],8 [img]/images/graemlins/spade.gif[/img],3 [img]/images/graemlins/club.gif[/img]]
SB bets $6, Hero calls $6.

Showdown
SB shows [ A [img]/images/graemlins/club.gif[/img],J [img]/images/graemlins/heart.gif[/img] ]
Hero shows [ Q [img]/images/graemlins/club.gif[/img]Q [img]/images/graemlins/diamond.gif[/img] ]
Hero wins $40.