10/20 He checks it through and I wimp out on the river...

[climber]

UTG 53/7/.8
Button 52/18/2

UTG is on my buddy list. Button bets when checked to.

Party Poker 10/20 Hold'em (6 max, 5 handed) converter

Preflop: Hero is MP with J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises</font>, <font color="#CC3333">Hero 3-bets</font>, Button calls, <font color="#666666">2 folds</font>, UTG calls.

Flop: (10.50 SB) Q[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, Hero checks, <font color="#CC3333">Button bets</font>, UTG calls, Hero calls.

Turn: (6.75 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, Hero checks, Button checks.

River: (6.75 BB) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">UTG bets</font>, Hero calls, Button folds.

Final Pot: 8.75 BB

I cheked the turn planning to c/r. I didn't want to donk the turn, get raised , find out I'm behind, and get UTG knocked out.

Given this was my plan I should raise the river right? If it hand't been the 3rd diamond I would have pulled the trigger but I wimped out.

Thoughts?