Minnie Driver Mother-To-Be

Minnie Driver revealed Thursday night on The Tonight Show with Jay Leno that she was expecting her first child.

A Socialite's Life first reported Driver's pregnancy news in January, but she officially confirmed the rumors on Thursday.

When Leno commented on her unusually curvy figure, the British star announced that it was due to her pregnancy.

"Are you calling me fat? You've noticed my tummy, haven't you?" Driver asked on the show.

"Are you pregnant?" Leno asked.

"Yes, I am," she confirmed.

Driver claimed that she loves being pregnant so far, but admitted that her morning sickness occurs "morning, noon and night." She also commented on the public's curiosity into celebrity pregnancies, "There are such weird vagaries of being a celebrity-so first of all you're followed around because they want to get a picture of your tummy."

Driver confessed that she does not yet know the sex of the baby and intends to keep it a surprise until the day of the birth.

"I feel like it's one of the last great mysteries of life. I don't want to know."

The actress gushed openly about the prospect of being a Mother, but has not yet revealed who the Father of the baby is.