She's certainly eating for two, she told PEOPLE at the Environmental Media Awards in Los Angeles. "(I'm) eating in the middle of the night. I'm like a bear. I wake up in the middle of the night, eat food and go back to sleep again. It's not fun, but it's a wild ride. I'm looking forward to it being over."
Bowen, 37, said she wants to be surprised by the baby's sex: "We could know, but I don't want to know. No names yet, nothing."
She also revealed that she's enlisted Project Runway finalist (and fellow expectant mom) Laura Bennett for maternity fashion: "I called her up and asked her to make me a dress. I love her style, she dressed herself very well pregnant. So I asked her to send me a dress. She did, but it didn't get here in time."
Finding maternity clothes, she said, is "definitely is not my favorite thing in the world, because you're stretching around a whole new body. What's up with that? It's like I'm 14 and have to figure out how to dress."
Bowen, who has appeared on ABC's Lost as Matthew Fox's ex-wife, plays attorney Denise Bauer on the network's Boston Legal and has had roles on Party of Five and ER.