She's pregnant with her first child.

But Chelsea Peretti is fed up with strangers commenting on her baby bump and asking about her due date.

The Brooklyn Nine-Nine actress, 39, who is expecting her first child with husband Jordan Peele, warned via Twitter on Monday that strangers better be ready for a taste of their own medicine should they remark on her appearance.

Taste of their own medicine: Chelsea Peretti is fed up with people commenting on her appearance (pictured with husband Jordan Peele in February 2017 in Los Angeles)

The star tweeted: 'IF U C A PREG WOMAN OUT & ABOUT & FEEL INCLINED 2 SHOUT SOMETHING IN HER FACE ABOUT HOW SHE LOOKS - GET READY FOR A SHOUT BACK ON UR LOOKS,' she tweeted on Monday.

'"UR BABY LOOKS READY TO DROP!" "THANKS MISS, UR PANTS LOOK HEMMED AT A WEIRD LENGTH" Good talk.'

"UR SO BIG!" "THANKS GIRL U LOOK LIKE U GOT A PERM IN THE 90s" take care kit love u much.'

"THE WAY UR CARRYING ITS GOTTA BE A BOY/GIRL" "COOL! THE WAY UR FACE LOOKS I FEEL LIKE U LOOK LIKE U HAVE BAD BREATH".'

Word of warning: Chelsea had a warning for strangers who wanted to comment on her appearance

Just an example: Peretti showed just an example of how she would hit back at random comments

'Will be a weird life': Chelsea joked that of course 'none of us are excited' about the arrival of her baby as she remarked on people asking if she and her family were excited for the child

"WHEN ARE U DUE?" WHAT DIFFERENCE COULD IT POSSIBLY MAKE IN YOUR LIFE AS A STRANGER AT THE GROCERY STORE.'

'"ARE YOU EXCITED? IS YOUR MOM EXCITED? IS YOUR HUSBAND EXCITED?" NO NONE OF US ARE EXCITED (UNFORTUNATELY FOR THE BABY) WILL BE A WEIRD LIFE.'

The actress did not shy away from dishing it out to those who confronted her on Twitter either.

User Maxmatic commented: 'You gotta get that baby out, gurl. You getting salty.'

Hair today: The Brooklyn Nine-Nine actress joked about commenting on someone's hair

Need a mint? Chelsea also said she could remark on someone's breath

Does it matter? The actress wondered why a stranger would want to know her due date

Observant! The star hit back at someone who said she needed to 'get that baby out'

To which she replied: 'NO SH*T SHERLOCK! GLAD TO HAVE U ON THE CASE.'

User d0minic commented: 'and breathe.......'

Chelsea replied: 'AND SUCK A D**K.......................'

One user asked Chelsea if she could write a bio for their Twitter account, which Chelsea responded with: 'SORRY I ONLY DO UNION JOBS EVEN THO I GET NO PAID MATERNTY LEAVE.'

Hitting back: Peretti had harsh words for someone who suggested she 'breathe'

Ouch: Peretti said she doesn't receive paid maternity leave

Not remaining quiet: Peretti replied sharply to someone who remarked, 'your caps lock is stuck'

After user Wheelsee commented Chelsea's caps lock button was 'stuck', Chelsea replied: 'MY MUTE BUTTON ISNT.'

The actress was clearly so fed up with people commenting on her appearance, she even said she would be wearing a costume to conceal her figure at her baby shower.

'GONNA WEAR A COSTUME AT MY BABY SHOWER TO OBSCURE MY BODY FROM COMMENTARY,' she said, along with photos of the costume.

Chelsea announced in February that she and Jordan were expecting their first child together.

The couple started dating in 2013, became engaged in 2015, and married last year.

Chelsea stars on the hit comedy series Brooklyn Nine-Nine opposite Andy Samberg and Terry Crews.

Going into hiding: 'GONNA WEAR A COSTUME AT MY BABY SHOWER TO OBSCURE MY BODY FROM COMMENTARY,' she said, along with photos of the costume