I just sat down and villain is unknown.

$0.50/$1 No Limit Holdem
5 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($109)
CO ($104.70)
Hero ($100)
SB ($99)
BB ($263.65)

Pre-Flop: ($1.50, 5 players) Hero is BTN
2 folds, Hero raises to $3, SB calls $2.50, 1 fold

Flop: ($7, 2 players)
SB checks, Hero bets $5.50, SB raises to $16, Hero calls $10.50

Turn: ($39, 2 players)
SB bets $25, Hero folds

This feels wrong to me. Should I just fold flop if I am planning on folding the turn?
Without reads I can't really call turn can I?