Jessica Alba's baby belly may be starting to show in earnest - but it looks like she's trying to make sure that it's the only belly we see!

We caught the Dark Angel sneaking into Emerson Hall Fitness for a workout session yesterday afternoon.

Halle Berry may be the hottest pregnant woman imaginable at the moment - but if Jess stays on her workout schedule, she'll be claiming that crown as soon as Halle gives birth!