PokerStars No-Limit Hold'em, $0.50 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($72.25)
Hero ($54.55)
CO ($50)
Button ($63.55)
SB ($50)
BB ($51.30)
UTG ($50)
UTG+1 ($22.20)
MP1 ($25.50)

Preflop: Hero is MP3 with K, Q. CO posts a blind of $0.50.
4 folds, Hero raises to $2, 1 fold, Button calls $2, 1 fold, BB calls $1.50.

Flop: ($6.75) 7, Q, K (3 players)
BB checks, Hero bets $5, Button folds, BB raises to $10, Hero calls $5.

Turn: ($26.75) 4 (2 players)
BB bets $10, Hero calls $10.

BTW, I only called here instead of raised cause I am scared of a set. do I have reason to fear it? is calling the right move?

River: ($46.75) 7 (2 players)
BB checks, Hero ?