Unfortunately, it's not the only thing giving her a hard time.
She is besieged on social media by hateful trolls who are furious with her, with this pregnancy, and by every choice that she has ever made.
Kailyn Lowry is not new to fame.
She is also not new to hate.
But this is another level.
According to her recent tweet, the recent deluge of vitriol that she has received across social media is all but unprecedented.
It doesn't just come from random bullies, but by dedicated and longtime viewers.
"The hate I get from followers and viewers is on another f--king level," Kail laments on Twitter.
The replies to her tweet are ample evidence that she's not wrong.
"Do you ever pause to wonder why?" one follower asks.
Another opines: "And it’s all deserved"
"Accountability feels like an attack when you're not ready to recognize your toxic behavior," a reply quotes.
"Look in the mirror from time to time," one tweet reads, "and You May get some answers."
"People comment on your choices," another reply says. "Make better choices, get better comments. Simple."
"Well it’s either the millions of haters or maybe it’s you," suggests another tweet.
Clearly, people are telling Kail that she deserves nonstop and vicious trolling.
"I’m just glad you stopped calling us fans," a follower rudely expresses.
"Unfortunately," a reply explains, "its because your life is public and you don't make the greatest decisions."
"When you post things about how the 'cancer industry' isn’t looking for a way to put themselves out of business," one follower says.
That tweet continues: "It is a slap in the face to every survivor, patient, caregiver, and more."
But Kailyn also received supportive replies, of course.
"Block them!!!" one fan tweeted, echoing similar sentiments that Kail may want to take a social media hiatus.
"I do!" Kail replies. "But there’s sooooo many."
She even responded to a tweet suggesting that people have good reason to give her a hard time on Twitter.
"I don’t care why! Not everyone is gonna like me," Kail replies. "That doesn’t mean [people should] tag me in every single opinion and hate comment."
Some people tag their own hate. Also, tagging someone below someone else's criticism of a famous person is known as snitch-tagging.
As the name suggests, it was originally intended as a way for someone's fan to draw a famous person's wrath upon a critic.
In reality, it is more likely to simply hurt the famous person's feelings.
A lot of the vile things that people say about Kail can be broken down to slut-shaming, biphobia, or plain ol' misogyny.
Of all of the replies to her tweet, the only negative ones that seemed to carry any water were the tweets about her belief in medical conspiracy theories.
While it's true that Lux and Baby #4 would be better off being vaccinated, shaming Kail won't convince her to make better choices.
Fans can't make stars be responsible parents. That job should fall to the government.
The 27-year-old reality star has already opened up about how Chris Lopez got her pregnant on purpose.
She had a restraining order against him at the time, and says that, for legal reasons, she cannot go into detail.
Kail has alluded to domestic violence, which is not the first time that fans have heard that serious crime associated with Chris.
In the end, maybe people should consider that Kail has a lot going on behind the scenes that make this an emotional time.
Don't be cruel.