Timpf, 36, said her new baby “might’ve saved her life” in a surprising announcement on Tuesday in which she revealed both the birth of her son and her diagnosis.

Timpf said 15 hours before she gave birth to her first child with her husband, Cameron Friscia, she was diagnosed with breast cancer.

“Now, before you worry, my doctor says it’s Stage 0 and is confident that it almost certainly hasn’t spread,” she wrote on Instagram.

“Or, as I’ve explained to the few people I’ve managed to tell about it so far: don’t freak out.

“It’s just, like, a little bit of cancer.”

She said she was more than a week past due when she gave birth and recalled the chaotic day as “not chill.”

In the comedian’s typical fashion, Timpf included jokes about her hectic day in the news of her health scare.

“I asked all the questions I could, including if I could get a copy of my tumor ultrasound to put on the fridge next to the ultrasound of my baby,” she said.

Timpf revealed she went into labor in the middle of the night before rushing to the hospital to meet her baby boy.

She also said doctors recommended she get a double mastectomy as soon as possible.

“These next three months of maternity leave are going to look a lot different than I’d anticipated, and I’m still getting used to my new reality,” the Gutfeld! co-host wrote.

“I’m lucky that we found the cancer so early; I’m lucky to be my son’s mom.

“I mean, I know I’m biased, but the little dude absolutely rules – and not just because he might have saved my life.”

She concluded her message with a toast to “finding humor and hope on the toughest days.”

Timpf, a political analyst and comedian on Fox News and co-host of Gutfeld!, shared on Instagram on February 11 that she was past her due date.

“Yes, I’m still pregnant. Yes, I’m past my due date,” she said.

She joked that it was the “longest pregnancy of all time.”

I asked all the questions I could, including if I could get a copy of my tumor ultrasound to put on the fridge next to the ultrasound of my baby.”

Kat TimpfFox New’s Gutfeld! co-host

The Fox News contributor worked through the final days of her pregnancy – which led some online trolls to ask intrusive questions and make gross comments about her pregnancy bump.

“Hi everyone! I am under the close care of a doctor, and I promise that both of us know and care far more about my health and the health of my own baby than any random online stranger does from just seeing me on TV,” Timpf fired back on X on February 17.

“Although I’m sure much of it is well-intentioned, I don’t need to be bombarded with comments about how my belly looking this way or that way CLEARLY means I will be needing this or that procedure,” she said.

“Or how I shouldn’t be at work, or concerns about my ‘amniotic fluid’ or any other wildly personal medical thing.”

Timpf announced her pregnancy last July in an emotional opinion story for Fox News.

She said she was surprised by the pregnancy because of her age.

“I never expected to find myself in this situation,” Timpf wrote at the time.

“Actually, I’d prepared myself for every outcome but this one: First, I expected that I wouldn’t get pregnant, especially not naturally.

“Once I did, I expected that I’d probably miscarry. I mean, I am 35, which makes mine a geriatric pregnancy, medically speaking.

In October, Timpf opened up about the online hate she received throughout her pregnancy in an exclusive conversation with The U.S. Sun.

“You know what’s crazy? I really thought that being pregnant would make people be nicer to me but people are meaner to me now,” Timpf said.

She said a number of trolls said they were annoyed with hearing about her pregnancy.

“I get a lot of people telling me to stop talking about it and they’re sick of hearing about it,” Timpf said.

“I’m like, ‘I’m so sorry that my pregnancy has been hard for you.’

It’s nine months of my life and then I’m not gonna talk about it anymore and it’s not gonna be happening.”

She added, “I talk about what’s going on in my life.”