Molly Sims turns 39 today! And this birthday girl is waiting for another birthday—her son's. "I just can't wait to meet him," Sims told us at the Liz Lange Maternity for Target 10th Anniversary Celebration in New York City. "We're still not decided on the name, my husband [producer Scott Stuber] and I are going back and forth. We've got charts and diagrams!" While Sims may not have named her little one, which she expects any day now, she definitely has her mom-to-be style figured out. Get her tips for dressing a pregnant belly, decorating a nursery, and more in the gallery!