Tripps from the BB- hows my line?

[checkmate36]

PokerStars 0.25/0.50 Hold'em (9 handed) FTR converter on zerodivide.cx

MP2 is a rock and CO is calling station.

Preflop: Hero is BB with T[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls, MP3 calls, CO calls, Button calls, SB completes, Hero checks.

Flop: (6 SB) 3[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP2 calls, MP3 folds, CO calls, Button folds, SB calls.

Decided to bet right out. They will probably think my bet is a bluff at the 3. Then again who says these players think at this limit. I know they like to call so let them do what they do best, call.

Turn: (5 BB) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP2 bets</font>, CO calls, SB folds, <font color="#CC3333">Hero raises</font>, MP2 calls, CO calls.

I hoped if I checked someone would bet and not think I have the 3. Calling station probably wouldn't bet so that leaves the rock. I got lucky and he bet. Too much risk trying to get more loot with my hand? Would suck if turn gets checked through.

River: (11 BB) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP2 calls, CO calls.

Final Pot: 14 BB

Thanks for any thoughts on this one.