Did I miss a bet?

[DanTheCardMan]

This was in a sort of home game last night.

Playing 3/6 hold'em.

I'm on the button.

UTG (fairly solid values) limps in, folded to me.

I raise with T [img]/images/graemlins/spade.gif[/img] 7 [img]/images/graemlins/spade.gif[/img]. (I raise with weaker value hands sometimes in order to vary my play.)

SB (VERY loose; somewhat passive) calls,
BB (new to the game but somewhat aggressive) raises
UTG calls
I call
SB calls

Flop comes JJ7

SB checks
BB checks
UTG checks
I bet
SB calls
BB calls
UTG folds

turn is a 7

SB checks
BB checks
I bet
SB calls
BB calls

river is a blank

SB checks
BB checks
I check

SB shows 55
BB shows QQ

I take it down with 7's full

Question: should I have bet the river? I'm thinking checking down here is the best bet because either player, especially the SB, was capable of a check-raise on the river.