One of the four star moms behind the MTV “Teen Mom 2” series, Kail Lowry, 21, is pregnant with her second baby with new husband Javi Marroquin.

Marroquin’s sister, Lidia Marroquin confirmed the news to In Touch Tuesday.

“They’re overjoyed. When Kailyn told Javi, he cried,” said Marroquin.

The couple, who are expecting their new addition this fall, was planning a fall wedding after legally tying the knot at a courthouse last September, but recently changed their plans.

“Looks like we’ll be pushing the wedding back an entire year. Just not in our budget this year like we planned,” Lowry tweeted earlier this month, blaming the cancellation on "taxes".

Lowry has a 3-year-old son named Issac with former boyfriend Jo Rivera. This will be the first child for Marroquin, 20, who is currently serving in the Air Force.

A friend of the reality star told the magazine that the newlyweds were not planning on expanding their family so soon.

“They’re nervous about the transition to two children but are so excited,” said the source. “They weren’t preventing it either.”

The mom-to-be hasn’t addressed the pregnancy on her social media accounts yet, but she did update her fans earlier in the week, posting a photo lying in bed and complaining of an unspecified illness.

Lowry recently starred in a controversial scene in the latest episode of “Teen Mom 2,” telling then boyfriend Marroquin that she wanted to “knock him out," grabbing him by the throat and pushing him after an argument.

“Surprised at how much support I’m getting. I am sorry for what I did and I think [Javi] knows that. We’re MARRIED now,” Lowry tweeted Monday night after the episode aired.

“A huge weight has been lifted from my shoulders now that ‘the' scene has finally aired and is over with,” she said.

Lowry is following in the footsteps of her other “Teen Mom 2” cast member Leah Calvert, who recently gave birth to her third child, Addalynn, with husband Jeremy Calvert in February. Lowry’s other co-star Jenelle Evans suffered a miscarriage with her second pregnancy with husband Courtland Rogers in February.

Lowry first appeared on MTV’s “16 and Pregnant” in 2010 and later starred in the spin-off “Teen Mom 2.” The show is currently in its fourth season.

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