Party Poker 1/2 Hold'em (9 max, 9 handed) internettexasholdem.com

Preflop: Hero is CO with Ad, As.
UTG calls, 1 fold, MP1 calls, 2 folds, Hero raises, Button calls, SB calls, 1 fold, UTG calls, MP1 calls.

Flop: (11 SB) 8d, 2d, 9h (5 players)
SB checks, UTG checks, MP1 checks, Hero bets, Button folds, SB folds, UTG calls, MP1 calls.

Turn: (7 BB) Jd (3 players)
UTG checks, MP1 checks, Hero bets, UTG calls, MP1 calls.

River: (10 BB) 7c (3 players)
UTG checks, MP1 checks, Hero bets, UTG calls, MP1 calls.

Final Pot: 13 BB

UTG showed 65 of clubs for the win.

My question is should I have checked the flop and waited for turn so I could make a BB to make drawing for a gutshot a mistake. His call on the flop was no mistake as he was getting about 10:1 odds on his draw.

I just didn't want to let a stupid free card come and let someone runner runner a two pair with rags.