Am I allowed to do this after I check the turn?

Villain is running 30/15, not terribly aggro. We don’t have any crazy history. Fwiw I can show up with a real hand here after missing a turn CRAI but there's no reason for villain to know that.

Seat 1: h2theizzo ($125.80 in chips)
Seat 2: 16161616 ($58 in chips)
Seat 3: HERO ($245.10 in chips)
Seat 4: Kribensis sits out
Seat 5: FloppyDuc ($428.96 in chips)
Seat 6: DaManiaC ($197 in chips)
HERO: posts small blind $1
FloppyDuc: posts big blind $2
----- HOLE CARDS -----
dealt to HERO
DaManiaC: folds
h2theizzo: folds
16161616: folds
HERO: raises to $7
FloppyDuc: calls $5
----- FLOP -----
HERO: bets $12
FloppyDuc: calls $12
----- TURN -----
HERO: checks
FloppyDuc: bets $20
HERO: calls $20
----- RIVER -----
HERO: checks
FloppyDuc: bets $40
HERO: raises to $206.10 and is all-in