100nl, AJo, TPGK facing weak leads, pot gets big fast

[goofyballer]

Both villains are something like 50/5/1.2. On one hand I feel the need to protect my hand against bets that look like they're trying to price themselves in w/ a flush draw, and on the other I feel like I'm opening myself up to getting exploited by doing so against a hand like 7x that just picked up trips on the turn. Thoughts on both streets?

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
6 players
Converter

Stack sizes:
UTG: $50
UTG+1: $129.96
CO: $64.95
Hero: $98.50
SB: $132.99
BB: $279.89

Pre-flop: (6 players) Hero is Button with J[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img]
UTG folds, UTG+1 calls, CO folds, <font color="#cc0000">Hero raises to $4.5</font>, SB calls, BB calls, UTG+1 calls.

Flop: 9[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] ($18, 4 players)
SB checks, <font color="#cc0000">BB bets $6</font>, UTG+1 calls, <font color="#cc0000">Hero raises to $22</font>, SB folds, BB calls, UTG+1 calls.

Turn: 7[img]/images/graemlins/spade.gif[/img] ($84, 3 players)
<font color="#cc0000">BB bets $12.43</font>, UTG+1 calls, <font color="#cc0000">Hero raises all-in $72</font>