Stud/8 Touney Hand - River bluff?

[Kurn, son of Mogh]

Foxwoods $45 + 15 Stud/8 MTT. 50 started, 5 places paid. 9 left, my table has 4 players.

600/1200/a100

I have 5200, villain in this is chip leader with about 12000 (older woman, regular at FW)

Villain (xx)(xx) 4 [img]/images/graemlins/club.gif[/img]
Seat 4 (xx)(xx) T [img]/images/graemlins/club.gif[/img]
Seat 6 (xx)(xx) 9 [img]/images/graemlins/heart.gif[/img]
Hero (A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]) 5 [img]/images/graemlins/diamond.gif[/img]

Villain brings it in fo 200, 2 folds, I complete, villain calls (1400)

4th street

Villain (xx)(xx) 4 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/spade.gif[/img]
Hero (A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]) 5 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img]

Check Check (1400)

5th street

Villain (xx)(xx) 4 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/club.gif[/img]
Hero (A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]) 5 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img]

Villain bets, I call. (3800)

6th street

Villain (xx)(xx) 4 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/heart.gif[/img]
Hero (A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]) 5 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img] Q [img]/images/graemlins/spade.gif[/img]

check check (3800)

River

Villain (xx)(xx) 4 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/heart.gif[/img] (xx)
Hero (A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]) 5 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img] Q [img]/images/graemlins/spade.gif[/img] (J [img]/images/graemlins/heart.gif[/img])

I'm watching her the whole way. She checks her river card and looks disgusted (not an obvious reverse tell) and checks. I look at my brick, back at her board and bet. She thinks for about 15 seconds and calls, saying "All I have are the jacks." [img]/images/graemlins/mad.gif[/img]

Bad move on my part?