Shay Mitchell is getting a head start on diaper duties.

In the most recent episode of her YouTube series "Almost Ready," the mom-to-be shared that she was wearing a diaper.

"Honestly guys, I've never known that somebody could pee as much as you do when you're pregnant," Mitchell said to her stylist. "I swear to God, in a half an hour, I went to the bathroom probably about 22 times last night to the point where I was like I'm (expletive) wearing diapers."

She then unbuttoned her pants to show she was wearing a diaper.

"I am literally wearing a full on (expletive) diaper," the "Pretty Little Liars" star said. "It literally gets so annoying having to go to the bathroom all the time.

Mitchell explained that she was over the constant bathroom breaks, especially when she's on set filming and the bathrooms are far.

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"I peed myself; I got a couple good times and then I had to throw it out," the actress explained to her stylist who replied she wished she thought of the idea with her previous pregnancies.

The 32-year-old star announced her pregnancy in June. She's having a girl with boyfriend Matte Babel, 38.