Beyonce Pregnant With Second Child: Report

The Carter family is expanding.

Beyonce Knowles and Jay-Z are expecting their second child, sources confirmed to E! News on Friday.

The news comes days after the 31-year-old was forced to cancel a show in Antwerp, Belgium, citing dehydration and exhaustion. She shared a handwritten apology on her Tumblr and Facebook pages, noting it was the first time she’s ever had to postpone a show.

Bey performed the second Belgium concert as scheduled on Wednesday, while the first show has been rescheduled for the end of the month.

“I would like to have more children,” the superstar told Good Morning America on May 6. “I think my daughter needs company. I definitely love being a big sister [to Solange Knowles] . . . my biggest job in the world is to protect my daughter and I am very protective.”

Bey and Jay-Z, 43, welcomed their first child, daughter Blue Ivy Carter in January 2012.

“The Mrs. Carter Show” world tour is scheduled to arrive in Zurich, Switzerland on Friday, followed by stops in Italy, France and Germany.

While Beyonce will get nearly a full month’s rest between the European and North American legs of her tour, “The Mrs. Carter Show” will run through August before hitting up multiple festivals: the V Festival in England Aug. 17 and 18, Jay-Z’s Made in America Music Festival in Philly on Aug. 31 and Rock in Rio in Brazil on Sept. 13.