NL10. No real read on either villain. I went from thinking I was way ahead (flop) to almost certain I was behind (turn). Tell me how you would have bet this one.

To help critique my flop bet, I was hoping to keep both villains in the hand and then pray for any non-spade. So it half worked

$0.05/$0.1 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
UTG ($5.49)
UTG 1 ($14.31)
CO ($8.97)
Hero ($10.31)
SB ($10.62)
BB ($17.84)

Pre-flop: ($0.15, 6 players) Hero is BTN
UTG calls $0.1, UTG 1 calls $0.1, 1 fold, Hero raises to $0.5, 1 fold, BB calls $0.4, UTG folds, UTG 1 calls $0.4

Flop: ($1.65, 3 players)
BB checks, UTG 1 bets $0.5, Hero raises to $1, BB calls $1, UTG 1 calls $0.5

Turn: ($4.65, 3 players)
BB bets $4.65, UTG 1 calls $4.65, Hero ($4.65)?