Wentz: 'I talk to our baby all the time'

Rocker Pete Wentz has said that he is learning fathering tips from the book The Expectant Father.

The Fall Out Boy star also revealed he was studying his wife Ashlee Simpson's "moods" so he could "feel more involved" with the pregnancy.

Speaking at the UFC Championship after-party in Las Vegas, Wentz told People: "I talk to it all the time.

"The Expectant Father [by Armin Brott] tells you that the woman, when she speaks, the baby hears her all the time. And the father's voice isn't familiar unless you talk to it, so I talk to it all the time.

"It tells you your partner's moods month-by-month and week-by-week. It tells you why you're feeling the way you are, how you can feel more involved in the pregnancy."

The musician also hinted that he may already be planning further children with Simpson.

"This is the first one so we'll have to base the next one on how we do on the first one," he commented.