You'd think the star of Alias would be a pro at sailing through tough interrogations, but Jennifer Garner inadvertently revealed the gender of her unborn child while being grilled by Jay Leno on Tuesday's Tonight Show. Not long after refusing to divulge the baby's gender, Garner said, "You can just start to feel really pregnant, like you are the hugest person on the face of the planet. I felt bigger and bigger, like she... " Garner stopped mid-sentence and started to giggle. And then Jay giggled. And with that, the moment became, well, unsettling.