no reads

5/10 (9 handed)<----yes, im playing 5/10 FULL...yes, i hate it.

I get T ,5 in the BB.
3 players limp to me, including the SB, and I check.

flop is 3 ,Q ,J
SB bets, I raise, UTG folds, button calls, Sb calls.

Turn is the 6
SB bets, I raise, Button calls, SB calls.

river is the 3
SB bets....

I think you want the overcall. You don't want to get 3-bet by a boat.