It all started with a pic of her baby bump.
The TV personality shared the snap with a lengthy caption.
Fans were quick to jump in and share their thoughts.
This fan said she is taking her business elsewhere.
Another fan didn't see a problem.
They've decided that Kat's personal choices have nothing to do with her makeup line.
One fan said Kat didn't think about other children.
Do you think she has a valid point?
One Twitter user said Kat had a right to speak her mind.
We hope Kat was ready for the landmine she stepped on. It's a controversial topic.
Some fans weren't too kind.
Even her makeup's biggest fans are taking a stand against her.
This fan kept it honest with the tattoo artist.
The fan was referring to this photo of Kat wearing Gucci sunglasses.
One Instagram user called her out for wearing the designer shades, commenting: "GUCCI IS NOT VEGAN BUT U WONT VACCINATE UR KIDS BC ITS NOT VEGAN."
Prior to the ordeal, the pair announced the pregnancy in May.
The beauty mogul and her husband shared a stunning photo of them together on May 8, and revealed the baby's gender. “It’s a boy,” she captioned the portrait, which showed her cradling her belly. Leafar shared the same snap on his account, and captioned it: “When I thought I had it all. Life gifts me with the greatest of joys! We are pregnant and having a baby boy. I love you @thekatvond and Im ready to be a father to our son Leafar. Thank you my love our family comes first !!!”
The parents-to-be became husband and wife in February.
She revealed the news on Instagram with a photo of their wedding rings, and captioned it: “Today, I married my soul’s mate, my mind’s twin, my best friend: @prayers 🖤Juntos en vida y en muerte.”
She also posted the above to her IG with the news.
They then had a ceremony in front of their loved ones.
The celebration took place in June.