After weeks of speculation, at least one media outlet is saying that singer-actress Jennifer Lopez is pregnant with not only one baby, but possibly two.

The new issue of Us Weekly magazine features a smiling Lopez on the cover with the words, "Yes, She's Pregnant!"

Lopez has yet to confirm that she's pregnant herself. But the magazine said that multiple sources have said that Lopez is four months along. Us also said that Lopez's estranged mother, Guadalupe, is telling people that her daughter is having twins.

Declaring that Lopez's baby bump speaks "loud and clear," Us also quoted MTV "Total Request" co-host Damien Fahey, who said that the singer's condition was obvious when she appeared on the show Monday.

"I've been around a lot of pregnant women. She walked around like a pregnant woman, sat like a pregnant woman and stood like a pregnant woman," Fahey told Us.

Fahey said that if he were a "betting man," he would "definitely bet she was pregnant."

If the rumors turn out to be true, it will make Lopez, 38, a mother for the first time. Her husband, 39-year-old singer Marc Anthony, has two children from his first marriage.

Lopez and Anthony recently co-starred in the musical biopic "El Cantante," and Lopez's new album, "Brave," was released Tuesday.

The performer has starred in such films as "Selena," "The Wedding Planner," "Maid in Manhattan" and "Out of Sight."