No-Limit Hold'em, $1.00 BB (6 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

UTG ($116.20)
MP ($118.50)
Hero (CO) ($100)
Button ($140.65)
SB ($122.82)
BB ($108.90)

Preflop: Hero is CO with J, A
2 folds, Hero raises $3.50, Button calls $3.50, 2 folds

Flop: ($8.50) J, 3, 9 (2 players)
Hero bets $6, Button calls $6

Turn: ($20.50) 2 (2 players)
Hero ???


villain was 20/8/3. Not played with villain before and I do not have specific reads yet.
I thinks this is standard, but it this a b/f?