Buttom two on a scary board

[CruS]

BTN is 15/7/3.00 over small sample
SB is 39/11/2.50 over big sample

What do you think of my line here?
What's should you consider to do at the turn here?

Full Tilt No-Limit Hold'em, $0.25 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($76.45)
BB ($26.85)
UTG ($63.50)
Hero ($31.45)
Button ($26.35)

Preflop: Hero is MP with 9[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $0.85</font>, Button calls $0.85, SB calls $0.75, <font color="#666666">1 fold</font>.

Flop: ($2.80) Q[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $2.5</font>, Button calls $2.50, SB folds.

Turn: ($7.80) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $4</font>, Hero calls $4.

River: ($15.80) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

Final Pot: $15.80