Bodog 50NL. Hero has 150BB's and is in SB with. 4 limpers, Hero completes, BB checks. Pot=$3.
Flop-----------Hero bets $2, UTG calls, CO calls, everyone else folds. Pot=$9.
Turn-----:As:------Hero bets $6, UTG folds, CO raises to $14, Hero calls. Pot=$37.
River-----------Hero checks, CO bets $22.75, Hero folds.
Thoughts?