Decent-ish draw on flop, unsure how to continue.

[!!DUCY!!]

Hand history below. Just started playing omaha, and don't really have a feel for how hard I should be pushing on the flop with various hands.

Here I didn't really know what to do, but ended up raising because I thought my hand was too strong to just fold and calling would let in any one-way draws behind me to bigger hands. I thought the lead out bet was most likely a made hand that wanted to end things now. Was this just reckless in this spot? Should I just fold? Also, pre-flop, almost folded then too.

Poker Stars Pot Limit Omaha Ring game
Blinds: $0.25/$0.50
5 players
Converter

Stack sizes:
UTG: $140.10
CO: $46.50
Button: $66.30
SB: $38.10
Hero: $52.45

Pre-flop: (5 players) Hero is BB with 2[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">CO raises to $1.75</font>, Button calls, SB calls, Hero calls.

Flop: 9[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] ($7, 4 players)
<font color="#cc0000">SB bets $6.65</font>, <font color="#cc0000">Hero raises to $26.6</font>