Pippa Middleton Is Reportedly in Labor in the Same Maternity Wing Where Kate Gave Birth

Update, 4:32 p.m.: Journalist and royal editor Robert Jobson tweeted that there are "reports that Pippa Middleton has gone into labor."

Hours ago, she was reportedly seen arriving to the Lindo Wing of St. Mary's hospital, where her older sister Kate has gone into labor and given birth to her three kids.

Original story, 2:54 p.m.: Is Pippa Middleton about to become a mom? The Duchess of Cambridge's younger sister was reportedly seen arriving to the Lindo Wing of St. Mary's Hospital, where Kate famously welcomed all three of her royal kids.

Pippa's husband, James Matthews, was photographed arriving alone carrying two overnight bags, hinting that this hospital visit might not be a quick, routine appointment, the Daily Mail reports. Pippa wasn't pictured, but was wearing a long blue coat, white shoes, and sunglasses for the appearance, according to the tabloid.

The British socialite didn't publicly announce her due date, but multiple outlets have reported that she's due this month. This would mark the first child for Pippa and James, who married in May 2017. The mom-to-be was just seen attending Princess Eugenie's royal wedding on Friday, after it was previously rumored that she would miss the ceremony to give birth.

The couple is also keeping secret about the sex of their baby, supposedly following suit with a tradition Kate kept. The mother of three kept her children's genders secret until birth, E! News previously reported. "They’re extremely private and honestly, we know nothing," Pippa's brother-in-law Spencer Matthews revealed in August.

Nearly two weeks ago, it was speculated that the younger Middleton sister would also give birth at the Lindo Wing after she was seen entering the facility with her husband. At the time, however, the couple only reportedly stayed for an hour before driving off.

News of Pippa's latest hospital appearance arrives in the midst of other royal baby news. Kensington Palace announced earlier this morning that Kate's sister-in-law, Meghan Markle, is expecting her first child with Prince Harry. The Duchess of Sussex is about 12 weeks along, and the baby is due in Spring 2019.

Prince George, Princess Charlotte, and Prince Louis (who was just born in April) will have two cousins to play with soon.