Will Naomi Watts and Liev Schreiber soon be elbow-deep in poopie diapers? In Touch is convinced the low-key couple is expecting the pitter-patter of little feet.

"This wasn't planned, but Naomi and Liev are thrilled," an insider tells the mag. "They'll probably be married before the baby is born."

Watts, whose recent fondness for empire-waist dresses and eye-popping cleavage has fueled the pregnancy talk, is purportedly early into her second trimester.

For now, the actress' rep remains mum on the bun-in-the-oven rumblings, telling MSN.com, "I don't comment on her personal life."

Naomi, 38, who's been dating Liev, 39, for close to two years (she previously had a capricious two-year coupling with Heath Ledger), has been open about her baby fever, gushing in 2004 that she's "been dying for [children] since I was 19 ... I really do want to experience a baby."

She echoed the sentiment a year later, and was even more specific about her procreation plans: "I would love to have two kids -- I get the feeling I'll be the mother of boys."

Meanwhile, in other baby news, the tabloids are abuzz with speculation that Jennifer Aniston is ready to brave the inevitable comparisons to Brad Pitt and Angelina Jolie and adopt a tot of her own.

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The National Enquirer claims the actress, who earlier this week debuted her no longer deviated septum and dismissed as hooey rumors of a Keanu Reeves hookup, is considering adopting two children, and says she was encouraged in her mommy quest by pal Oprah Winfrey.

Life & Style, meanwhile, has her confiding in BFF Courteney Cox and looking to bring home an ankle-biter or two sooner rather than later.

Jen's rep, however, pooh-poohs the Pampers nattering, at least for now.

"She has no plans to adopt," her spokesman tells "Extra," "but would not rule that out for the future."