Correct odds to call?

[kingstalker]

Pokerstars 3 dollar rebuy toureny
Blinds 75/150
I have 6000 in chips, opponet has about 10,000
I have [img]/images/graemlins/spade.gif[/img]9 [img]/images/graemlins/spade.gif[/img]10 on the button
Flop is
[img]/images/graemlins/club.gif[/img]Q [img]/images/graemlins/club.gif[/img]8 [img]/images/graemlins/diamond.gif[/img]9
BB checks, MP raises to 600, I call,BB folds
Here I am trying to see if my middle pair can improve but manily I have a gutshot draw, basically just fishing to see if I can hit something.
Turn [img]/images/graemlins/club.gif[/img]2,My opponet bets 600, I call again
River [img]/images/graemlins/spade.gif[/img]5
Here my opponet bets 600, and I am about to click the fold button when I notice that there is 3500 in the pot so if I call I am getting almost 6-1 on my money, so I call and of course my opponet has a pair of queens, was my pot odds call correct on the end?