Call or Push, or Fold?

[recallme]

Game #2697292463: Hold'em NL (£0.50/£1) - 2006/12/05 - 23:38:27 (GMT)
Table "Abilene" Seat 1 is the button.
Seat 1: lok123 (£209.25 in chips)
Seat 2: sakalas1 (£72.89 in chips)
Seat 3: Alessi003 (£21.75 in chips)
Seat 4: unicoern (£169.56 in chips)
Seat 5: Mybabe (£83.91 in chips)
Seat 6: BLebowski (£14 in chips)
Alessi003: posts small blind £0.50
unicoern: posts big blind £1
----- HOLE CARDS -----
dealt to unicoern [6h 9h]
Mybabe: calls £1
BLebowski: folds
lok123: folds
Alessi003: folds
unicoern: checks
----- FLOP ----- [4d Ah Kh]
unicoern: bets £1.50
Mybabe: calls £1.50
----- TURN ----- [4d Ah Kh][5s]
unicoern: bets £2.50
Mybabe: calls £2.50
----- RIVER ----- [4d Ah Kh 5s][7h]
unicoern: bets £9
Mybabe: raises to £39

The difficultie is that i have no read. I think pushing is out of my range.

[p-i]

Vacuum: Fold.

[recallme]

You really fold here?