25NL - AQo OOP

[Arcturus]

Villian and I played HU at a new table for 7 hands. Nothing noteworthy occurred. This took place 2 hands after the 3rd player arrived.

PokerStars No-Limit Hold'em, $0.25 BB (3 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($22.75)
Button ($25)
SB ($25)

Preflop: Hero is BB with Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Button raises to $0.75</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2</font>, Button calls $1.25.

After raising, I realized I didn't raise enough. Probably to at least $3.

Flop: ($4.10) J[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3</font>, Button calls $3.

Turn: ($10.10) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, Button calls $6.

River: ($22.10) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="blue">Hero...?</font>

Is this a clear c/f (depending on villian bet size?) Should I have checked the turn and c/c the river?