Im playing without HUD, villian is kinda nitty and was in line so far. Folding seems too exploitable, do we have a plan for the turn when we call, do we move in now?

$1/$2 No Limit Holdem
10 players
Converted at weaktight.com

Stacks:
UTG ($200.00)
UTG 1 ($229.35)
UTG 2 ($42.70)
MP1 ($40.75)
MP2 ($135.35)
Hero ($227.00)
CO ($229.55)
BTN ($229.50)
SB ($209.30)
BB ($93.95)

Pre-flop: ($3, 10 players) Hero is MP3
5 folds, Hero raises to $8, 2 folds, SB calls $7, 1 fold

Flop: ($18, 2 players)
SB checks, Hero bets $12, SB raises to $39, $27 to Hero ($207)?