Should I be scared of this scare card?

[KSOT]

Clearly I was.

PokerStars Pot-Limit Omaha High, $2 BB (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Button ($166.65)
Hero ($194)
BB ($200)
UTG ($942.55)
MP1 ($602.80)
MP2 ($153.70)
CO ($342.85)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to $7</font>, <font color="#666666">2 folds</font>, CO calls $7, <font color="#666666">1 fold</font>, Hero calls $6, BB calls $5.

Some of you will say to raise preflop, but I don't like doing so with so little in the pot when I'll be OOP for the rest of the hand.

Flop: ($28) Q[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, BB checks, UTG checks, CO checks.

Obv a missed check/raise. A case of FPS perhaps? Maybe.

Turn: ($28) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $26.6</font>, BB INSTAcalls $26.60, UTG folds, CO folds.

River: ($81.20) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">BB bets $78.2</font>, Hero...?

Possibly the worst river card for my hand. Looking back at it though, my river check seems pretty weak. Should I lead out here? If I do and he raises do I fold? Also as played, do you call here?