Didn't have any reads on the player. Wasn't in the table too many hands. Thanks for any advice/constructive criticism

PREFLOP: {AJo+, 45s+, 44+} I just put almost all suited connectors, Any ace better than a ten, and pairs above 44
FLOP: {JJ, TT, AQ, KQ, JQ, AhJh, AhKh, JT} Maybe some slow-played sets are possible, though i figured he would probably have check-raised if anything. JJ and TT i figured he might give one call and then give it up.
TURN: {JJ, TT, AQ, KQ, JQ, AhJh, AhKh, JT, JJ} Some passively played top pairs, and draws. Should I double barrel here to discourage the draws from continuing, discourage a river bluff, and to fold JJ/TT? Or should I just check, hope for a good river card because the 7 doesn't look like it could have helped me?

Full Tilt No-Limit Hold'em, $0.05 BB (6 handed) - Full Tilt Converter Tool from Poker Strategy Forum | Online Texas Holdem Reviews Strategies Tools & Bonus Guide

saw flop

MP ($6.36)
Hero (CO) ($6.08)
Button ($4)
SB ($5.31)
BB ($5)
UTG ($1.36)

Preflop: Hero is CO with Ac, 10c
2 folds, Hero bets $0.20, 2 folds, BB calls $0.15

Flop: ($0.42) Qh, 9d, 3h (2 players)
BB checks, Hero bets $0.30, BB calls $0.30

Turn: ($1.02) 7c (2 players)
BB checks, Hero ???