Eva Mendes Campaigns To Have A Baby With Ryan Gosling — By Hanging With Mom Pal January Jones!

Eva Mendes is trying to convince on-again, off-again boyfriend Ryan Gosling that they should have a child together, RadarOnline.com has learned.

And the 2 Fast 2 Furious beauty, 39, has been hanging out with her single mom pal January Jones, 36, to make her case!

"Eva is spending a lot of time with January and her two-year-old son, Xander," a source dished.

"She's going overboard with her supportive relationship with January, who has her hands full as a young mother at the moment.

"Eva seems obsessed with proving to Ryan that she's ready to start a family."

The source said while Mendes "repeatedly passed on the idea of having children" with her previous boyfriend, Peruvian filmmaker George Augusto, she now has baby fever!

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And she wants Gosling to be the father, even though they've had their ups and downs, the source added.

As RadarOnline.com has reported, Mendes and Gosling, 33, recently took a break in their relationship as The Notebook hunk was undecided about their future.

But after they had been a couple for more than two years, "Eva wanted to have his babies," an insider said.