50NL: AQo from MP; did I overplay top pair?

[RThomas]

The only read I had on this player was that he had raised only one hand in twenty at the table. I guess I just really didn't have a plan for the hand after I decided to three bet on the flop. Should I have seen that he had AA or QQ after he checkraised?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

CO ($52.35)
Button ($54.35)
SB ($43.25)
BB ($62.90)
UTG ($52.05)
Hero ($47.75)

Preflop: Hero is MP with , .
UTG calls $0.50, <font color="red">Hero raises to $2.5</font>, <font color="#666666"> 4 folds </font> , UTG calls $2.

Flop: ($5.75) , , 2 players)</font>
UTG checks, <font color="red">Hero bets $4.5</font>, <font color="red">UTG raises to $11</font>, <font color="red">Hero raises to $20</font>, UTG calls $9.

Turn: ($45.75) 2 players)</font>
UTG checks, Hero checks.

River: ($45.75) 2 players)</font>
<font color="red"> UTG bets $29.55 (All-In)</font>,