
Yes, Jolene had a baby.
No, we're not all entitled to see him.
BUT, for those of you who have that itch you just have to scratch, go to her comedy troupe's facebook page. (Second City Con 4) You'll see several videos of her performances. You hear a baby cooing in many of them. At the end of one (the one labeled Part 4 - 3-14-11) whoever is holding the camera turns it onto the baby. The kid would be about the right age.
Furthermore, as these are not professional quality recordings, I'm willing to bet they're from Jolene's personal collection. There's a video marked "Trailer - Molten Ash", and in one of the comments, a fellow cast member thanks Jolene for making the trailer. If the recordings were made on Jolene's camera or phone, there'd be no reason to take pictures of someone else's kid.
At this point that's about as much confirmation you're going to get. Nobody is going to put a t-shirt on the kid that says "I'm Jolene Blalock's baby." Or "My mommy is T'Pol."
And yes, some celebrities value their privacy. Just because you like someone, it doesn't mean that they owe you a piece of themselves. Believing that they do is just creepy. Believe me, I had reservations about sharing the link after seeing some of the sense of entitlement, but I figured it was only a matter of time before it made its way throughout the general fandom any way.
Jolene just tweeted the link to the page on Sunday.