[NL50] how bad am I?

[Ranma4703]

Effective stacks are 50$
I am dealt QQ in the c/o
UTG minraises, he minraises a lot of hands pf, and likes to minbet
UTG+1 calls
I raise to 4$ (first time I've reraised him pf)
he calls, everyone else folds
Flop comes out JdJs8H
he checks, I check behind because I figure there is not much value here - either he has a jack, and I'm screwed, or he doesn't and I'm ahead. I probably should have bet here, right?
turn brings Kc, he bets out 5$ into the ~9$ pot, I call
river brings the 4d, he pushes.
I feel like the river is usually a bluff, but it could also be KJ/88/44 going for the old stack-a-donk line. I think he never has a king here.