$100: A9 2pair faces turn donk

[NL Newbie]

Party Poker No-Limit Hold'em, $ BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($194.18)
SB ($98.50)
BB ($108.85)
UTG ($106.20)

Preflop: Hero is Button with 9[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.50.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#666666">1 fold</font>, BB calls $3.

Flop: ($8.50) J[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $7</font>, <font color="#CC3333">Hero raises to $17</font>, BB calls $10.

Turn: ($42.50) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $40</font> Hero?

First post in SSNL, WOOHOOOO!

Started NL cash few weeks ago(*NL$10) just worked my way up now shot taking.

Up untill now villan is 45/17 with AF of 1.4 over 88 hands. He's once bet $11 into an $11 pot w/Missed FD which i called(Induced so called it).

Was torn between folding here and calling.

Also another question - So im ahead here a fair bit but shall we push here, or wait for river to push. Of course we're getting our stack in now or on river and if we're behind say to bigger hand then we have 8% chance to boat up. So calling here &amp; river is better than pushing here right?(NO Fe, Chance to draw out to boat etc)?

Thanks!