Beyonce is pregnant with her second child, according to reports.

After weeks of speculation, a source close to the Countdown singer said that Beyonce is indeed expecting a second child with husband, Jay-Z, E! News reported. The couple already has a daughter together, 16-month-old, Blue Ivy.

Rumors began swirling that the superstar was pregnant when she walked the red carpet at the Met Gala 2013 wearing a Givenchy dress that included a belt that covered up her stomach and waistline.

Enstars reported earlier that the singer cancelled her tour stop in Belguim on Tuesday, marking the first cancelled concert in the singer's career. She penned an apology letter to her fans on Facebook, which read:

"I've never postponed a show in my life. It was very hard for me. I promise I will make it up very soon. I'm sorry if I disappointed you. Thank you for your concern. I'm feeling much better now and I'm ready to give you a great show. All my love. See you tonight."

On Wednesday, she returned to the stage and thanked fans for the support. She took the microphone to tell the audience that she was performing against doctor's will, but didn't want to disappoint her beloved fans.

"I just have to say, I feel so good to be on this stage. I have the best fans in the world. Now, my doctors told me not to perform tonight, but there was no way in the world. I just have to say that you all have given me so much inspiration and I just want to thank you guys," she said in the below video.

Pictures of a larger- than-usual stomach began to make its way around, prompting many to believe that the singer was pregnant.

She recently sat down with Good Morning America in London and said that her daughter, Blue Ivy needs some company.

"I definitely love being big sister," Beyonce said.

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