[2NL] Unsure how to play middle pair vs wide range

hello, newish player looking for some help with this hand and how I can play it better

SB VPIP: 67%
BB VPIP: 57%

[converted_hand][hand_history]PokerStars - C$0.02 NL (6 max) - Holdem - 6 players
Hand converted by Holdem Manager 3

Hero (CO): CA$2.21 (110.5 bb)
BTN: CA$2.45 (122.5 bb)
SB: CA$1.98 (99 bb)
BB: CA$1.54 (77 bb)
UTG: CA$2.02 (101 bb)
MP: CA$2.04 (102 bb)

SB posts CA$0.01, BB posts CA$0.02

Pre Flop: (pot: CA$0.03) Hero has 9♥ 9♠
2 folds, Hero raises to CA$0.05, fold, SB calls CA$0.04, BB calls CA$0.03

Flop: (CA$0.15, 3 players) J♣ 7♦ 2♦
SB checks, BB checks, Hero bets CA$0.04, SB calls CA$0.04, fold

Turn: (CA$0.23, 2 players) 4♠
SB checks, Hero checks

River: (CA$0.23, 2 players) K♦
SB bets CA$0.11, Hero calls CA$0.11

Results: CA$0.45 pot (CA$0.02 rake)
Final Board: J♣ 7♦ 2♦ 4♠ K♦

SB shows 2♥ K♥: (Two Pair, Kings and Twos)
(Pre 31%, Flop 20%, Turn 11%)

Hero mucks 9♥ 9♠: (One Pair, Nines)
(Pre 69%, Flop 80%, Turn 89%)

SB wins CA$0.43
[/hand_history][/converted_hand]