50NL river trips and get minraised

[Abelardo]

Not mush hands on this guy, looks pretty donkish, vpip 50+/15/1.5 or so after about 30 hands.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool (http://poker-tools.flopturnriver.com/Hand-Converter.php) from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

SB ($24.60)
Hero ($50.90)
UTG ($46.75)
MP ($76.10)
CO ($10)
Button ($67.95)

Preflop: Hero is BB with Q/images/graemlins/heart.gif, 9/images/graemlins/spade.gif.
<font color="#666666">1 fold</font>, MP calls $0.50, <font color="#666666">2 folds</font>, SB completes, Hero checks.

Flop: ($1.50) 8/images/graemlins/club.gif, J/images/graemlins/diamond.gif, 9/images/graemlins/diamond.gif <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $1</font>, MP calls $1, SB folds.

Turn: ($3.50) 2/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $2</font>, MP calls $2.

River: ($7.50) 9/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3.5</font>, <font color="#CC3333">MP raises to $7</font>, <font color="orange">Hero? </font>

Good spot to get some more value?

[Capone]

I don't like betting this second to ack post flop, and then contiuning to bet it all the way horrible. I would check fold the turn.

As played, I would just call the river lots of hands beat you.

[Abelardo]

I bet middle pair often against 2 opponents, often I take it down, I'm b/f the turn on this drawy board, perhaps should've bet more and I'm guessing the donk very likely has a draw at this point, I was going to shut down on the river but not after the 9