Man, did I fuck this one up--Nut hand w/ Multiway action

[samsonite2100]

Okay, sorry for the homemade HH, but Bodog HHs are poison to the converter. Anyway, here's the setup:

Full ring, 50NL

I'm UTG+1. UTG limps, Hero limps w/ QKs (I know, I know, but it's a very limpy table), two new players post their .50, two more limps, SB completes, BB checks.

Flop=9 10 J rainbow, pot is $3.50

Flop Action=SB bets $1.5, Hero calls, two more calls

Turn=3, pot is $9.50

Turn Action=SB bets $3, Hero raises to $12, two folds, SB calls

River=5, pot is $31.90

River Action=SB checks, Hero pushes, SB folds.

I ought to mention, at the time I pushed, my stack was around $85. SB's stack was about the same. I feel like I left about 50 bucks on the table here, but I'm not sure what the best line would be. Any thoughts?

[Fnord]

Raise early streets.

[Alibi]

Calling the flop bet makes very little sense unless you are sure that someone behind you will raise.