Former pop tart Britney Spears has caused even more speculation that she is pregnant by pulling out of a photo shoot with a major magazine. Brit was scheduled to appear on the July cover of Marie Claire magazine, but reportedly has cancelled.

Some media insiders are saying that points to the fact that Spears has been packing on the pounds for baby number two reports the NY Daily News.

The Daily Dish cites celebrity conspiracy theorists as believing that's just another piece of the puzzle Britney Spears is pregnant again.

It doesn't take much of a conspiracy theorist to take a look at Brit's belly and take a guess that she is indeed with child again. Her recent bikini shots showed what appears to be a very large baby bump.

In more snaps from the islands a bikini clad Britney has taken to using a towel to covering her stomach according to Pop Bytes.

Spokeswoman Leslie Sloane Zelnick says scheduling conflicts, including the recording of an album in Hawaii, meant the cover shoot couldn't happen.

But her publicist also is changing her tune from her earlier stock answer of- 'no' Britney is not pregnant to 'as far as she knows, (Britney is not pregnant) pop bytes notes in it's Britney item.

If she is preggers - she's a few months along - so official word can't be far away.