Did I f this up or what

This was at 50NL at Party.

Hero is UTG with $49, Villain is mp2 with $40.
I have AQd and bet $3 everyone except the Villian(47/12.5/1.25 over 40 hands) fold.
The flop is A [img]/images/graemlins/heart.gif[/img] Q [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/club.gif[/img]
I bet $2 Villain calls
Turn is a 10 [img]/images/graemlins/spade.gif[/img]
I bet $10 again Villain calls
On river comes a 10 [img]/images/graemlins/heart.gif[/img]
I check and Villain bets pot about $22
What do I do now? I was distracted by my sister and did not think my bet amount through.