Is it worth finding out if I'm good for 1/2?

[TomG]

Party Poker
Pot Limit Omaha Hi/Lo Ring game
Blinds: $0.25/$0.50
9 players


Stack sizes:
CO: $134.73 (VPIP 65, PFR 7, AF-Tot 1.6)
Hero: $49.50

Pre-flop: (9 players) Hero is BB with
3 folds, MP2 calls $0.5, MP3 folds, CO calls $0.5, 2 folds, 2 folds, Hero raises to $2, MP2 folds, CO calls $1.5.

Flop: ($4.75, 2 players)
Hero bets $4.55, CO calls $4.55.

Turn: ($13.85, 2 players)
Hero checks, CO bets $13.2, Hero calls $13.2.

River: ($40.25, 2 players)
Hero checks, CO bets $38.25, Hero...

On the river, I have $29.75 left in my stack. Might I be good for 1/2 in one direction? If so, is it worth calling all-in to find out?

[GooperMC]

[TomG]