So many outs...

[mtdoak]

Well, your certainly not winning this pot by checking. Bet/Fold and hope he was on a draw as well. With 4.5 BB in the pot, this move only has to work 25% of the time to be profitable, however. Your losing 100% of the time when he calls, but your also losing a high % of the time when you check as well.

[Stefan_K]

I fold preflop, i like the flop and turn bet. Usually i C/F this river, but this board is ragged with a lot of draws so you might be good bluffing the river