Jennifer Garner: 'Tonight Show With Jay Leno'!

Jennifer Garner makes an appearance on The Tonight Show With Jay Leno on Thursday (January 5) in Burbank, Calif.

The 39-year-old expecting actress (in Giambattista Valli) talked about her pregnancy and chatted with Jay Leno about whether or not husband, Ben Affleck, wants a baby boy.

PHOTOS: Check out the latest pics of Jennifer Garner

“I would have thought [he wanted a boy]. At first I think I really thought so,” Jennifer told Jay. “And then he kind of said, ‘Well, we have girls. We know how to do girls. My girls love me. I’m the big guy in the house.’ So, now I’m not sure.”

Click inside for part 2 of Jennifer Garner‘s Tonight Show interview…