Aug 16, 2009, 5:00 GMT
Fergie is desperate to start a family with husband Josh Duhamel.
Josh Duhamel -A source told the National Enquirer magazine: "Fergie and Josh were at a Los Angeles Dodgers baseball game. She turned to him right in the middle of it and told him she wanted a baby to make their lives complete.© Solarpix / PR Photos
The 'Black Eyed Peas' singer felt unsure she was ready to become a mother until recently, and told her delighted husband about her change of heart in unusual circumstances.
A source told the National Enquirer magazine: "Fergie and Josh were at a Los Angeles Dodgers baseball game. She turned to him right in the middle of it and told him she wanted a baby to make their lives complete.
"She says pregnancy will be a crash course in cleaning up her act."
Fergie, 34, married the 36-year-old 'Transformers' actor earlier this year, and he was keen to have a child as soon as possible.
The 'Boom Boom Pow' singer was initially reluctant to put her career on hold, but her recent decision has thrilled Josh.
The source added: "He adores Fergie and he can't wait for her to be pregnant."
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