Congratulations to former Dawson's Creek star, Busy Philipps, 29, and hubby, writer Marc Silverstein, who have joined the celebrity baby convoy.

"We found out today it's a little girl!" Philipps told Usmagazine.com yesterday. The actress is about five months along.

"I feel great!" says Busy. "I've had, like, no morning sickness!"

Philipps is godmother to Matilda, the daughter of Michelle Williams and Heath Ledger, and she is about to reap the rewards of her role. "Michelle's going to send me a lot of stuff!" she says. "We're very close."

But Busy says Williams won't be her daughter's godmother. "She has her hands full with being a mother right now," she explains. Instead, the honor goes to her Cloverfield star, Lizzy Caplan.

"I've known her for a million years!" Busy says. "The cool thing about giving someone the godmother title is that it's sort of practice for their own baby."

The actress got her nickname from her parents, because as an infant, she was always moving. The nickname stuck; it even appears on her driver's license!

[Us]