50NL equity checkup

[Semtex]

I forget, can I call this even if I'm positive he has the flush? I'm pretty sure I can (and I did). Should I have raised PF?

PokerStars No-Limit Hold'em, $0.50 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG+1 ($38.90)
MP1 ($30.60)
MP2 ($59.10)
CO ($45.65)
Button ($48.95)
Hero ($49.50)
BB ($49)
UTG ($40.90)

Preflop: Hero is SB with 6[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls $0.50, <font color="#666666">1 fold</font>, Button calls $0.50, Hero completes, BB checks.

Flop: ($2) Q[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $1.5</font>, <font color="#CC3333">BB raises to $5</font>, MP2 folds, Button folds, <font color="#CC3333">Hero raises to $15</font>, <font color="#CC3333">BB raises to $48.5</font>, Hero calls $33.50.

Turn: ($99) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

River: ($99) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $99