Jessica Alba Engaged to Cash Warren?

Jessica Alba recently announced she's pregnant, but she didn't say anything about an engagement. We just assumed Jessica Alba wasn't engaged to Cash Warren for that reason - but then we got ahold of this photo! Is that an engagement ring?

Check out the rock: Are Cash Warren and Jessica Alba engaged? 

Now, our staff writers are no geniuses when it comes to celebrities being engaged, but that is Jessica Alba's left hand and ring finger we're talking about here - and that's gotta be at least a three- or four-carat rock resting squarely on it.

Did Cash Warren make an honest woman out of Jessica? Or is this just some extra bling she had kicking around? Guess we'll have to wait for official confirmation to see if these two are really engaged - but you heard this celebrity gossip here first!