The `Grown Woman` singer - who welcomed her first child, daughter Blue Ivy Carter, into the world in January 2012 - is said to be expecting again with her rapper husband Jay-Z.
The New York Post newspaper claims "multiple sources" told them Beyonce, 31, is pregnant following her attendance at the star-studded Met Ball last week, where the star`s rumoured pregnancy was the talk of the night.
The pop superstar is said to have "carefully" hidden her baby bump in a high-waisted Givenchy gown, but according to the report, multiple photos have surfaced of Beyonce sporting a growing stomach on her 65-date `Mrs. Carter Show` world tour, which touched down in Dublin, Ireland, last night (12.05.13).
The `Girls (Run the World)` hitmaker`s spokesperson couldn`t be reached for comment by the newspaper, but Beyonce and Jay-Z - real name Shawn Carter - remained tight-lipped about her first pregnancy until sensationally announcing it live at the MTV Video Music Awards in August 2011.
Beyonce recently admitted she would love to give her 18-month-old daughter a sibling, because she enjoyed such a close relationship with her younger sister Solange Knowles, 26, when they were growing up.
She said: "I would like more children. I think my daughter needs some company. I definitely love being a big sister."
When pressed on when she may have another child, she added: "At some point, when it`s supposed to happen."