Susan Downey and Robert Downey Jr. Susan Downey and Robert Downey Jr.

Robert Downey Jr. predicted he'd be "wrist-deep in doo-doo within 18 months" in November. And now he will be: His wife, Susan, is pregnant with the couple's first child, his rep tells

Susan, a producer, is due in February. Downey has a 17-year-old son, Indio, with his ex-wife, Deborah Falconer.

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Last fall, Downey told Playboy he expects to start a family with Susan soon — and he was thinking pink."I think we should probably try to have a girl, because I don't want another male entity to have to compete; I don't want Indio to feel there's another boy in my life," he said. "But I don't know what we'd have to do [to have a girl]. Do we have to put it in a spoon and hang it upside-down?"Downey, 46, and Susan, 37, have been married for six years.