It's not unusual for expectant mothers to wait until after the first trimester to publicly announce their impending bundles of joy. Biology being what it is, it's tough to wait much longer than that without people noticing an inexplicably expanding waistline.

But according to a new story, Adele -- who just 11 days ago told the world she was knocked up -- could be as much as seven months along already.

An insider allegedly told the British site Heatworld that the singer is due in early September, adding, "Adele has barely left the house in recent months so she could keep this to herself for as long as possible."

But is it true? Maybe. Despite being nominated for 12 Billboard Awards in May, the 24-year-old chanteuse didn’t fly to the U.S. for the ceremony -- perhaps because doctors sometimes tell expectant moms to avoid air travel later in their pregnancies. She did show up for the British Ivor Novello Awards that month, but of course that was local -- and not only did she wear a loose-fitting full-length black dress, she arrived late and uncharacteristically avoided photographers.

Adele is known for her voluptuous bod, but she showed off a slimmed-down frame at the Grammys in February. Doing the math, that would've meant she was about two months along then -- early enough that her bun in the oven would've still been small enough to hide.

Guess we'll all just have to wait and see. But if the story is true, it would certainly explain why Adele and boyfriend Simon Knoecki are reportedly thinking about tying the knot sooner rather than later.

Watch the Adele 'Someone Like You' Video

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