Jenelle Evans 3D Ultrasound: 'Teen Mom 2' Star Is 7-Months Pregnant

Jenelle Evans is nearing the due date of her second child.

On Thursday, following a routine checkup, the Teen Mom 2 star shared the latest photo of her unborn son.

"Mr. Kaiser Griffith," Evans wrote on Twitter on May 8, along with a 3D ultrasound of her second son, whose father is her boyfriend of nearly one year, Nathan Griffith.

Following a breakup from her husband, Courtland Rogers, Evans met Griffith on a dating app and instantly hit it off. Their meeting, and the beginning of their relationship, was featured on the fifth season of Teen Mom 2. Although Evans remained married to Rogers throughout her relationship with Griffith (because of state law in North Carolina which requires couples to be separated for a year before divorcing), she recently filed for divorce.

In April, Evans and Griffith appeared in a MTV Teen Mom 2 featured moment in which they were seen discussing their future. In the clip, Evans confirmed that she and Griffith weren't yet engaged, but noted that they could become engaged "soon." Evans also said that she and Griffith were considering a "summer wedding."

According to a report by Teen Mom Truth, baby Kaiser is due on June 29 and currently weighs in at 4.9 pounds.

Kaiser will join older brother Jace, from Evans' previous relationship with Andrew Lewis, and big sister Emery, from Griffith's first marriage.

While Teen Mom 2's fifth season concluded in mid-April, Evans and her family continue to film for what has been reported as the second half of season five, also known as Teen Mom 2 season 5B, which will reportedly premiere in Sept. 2014.