The singer recently said she would like more children and thinks her 15-month-old daughter, Blue Ivy, "needs some company" from a sibling. However, she has not publicly announced she is pregnant.
The Post said Beyonce sparked baby buzz last week when she attended the Metropolitan Museum of Art's Costume Institute gala in New York, while wearing a Givenchy gown with a high, belted waist that hid her midsection.
The newspaper quoted unnamed sources as saying the pregnancy rumor is true, but details regarding the baby's gender and anticipated due date were immediately known.
Celebrity Families of 2014 [PHOTOS]