Baby No. 3 for Nicole Richie and Joel Madden?!

According to a new report, the 34-year-old fashion designer wants another child … but it's for all the wrong reasons!

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“Nicole is currently gaining weight because she is trying for another child with Joel,” a source reveals. “After going through a really rough patch she feels that having a baby will help repair everything that is wrong with them.”

nicole richie

Divorce rumors have plagued the couple for months, and friends are worried that the mother of Harlow, 7, and Sparrow, 6, "is just trying to get pregnant so that she can pressure Joel into staying with her."

The insider tells Radar Online, "Her inner circle just hopes that she can figure this out before it’s too late."