Rachel Zoe has yet to confirm her rumored pregnancy, but a source tells X17online that the mom-to-be was seeking advice from pal Nicole Richie over the weekend!

It all went down at the Soho House, where our spy overheard mom-of-two Nicole Richie giving pal Rachel Zoe advice on everything from pregnancy to labor.

The source tells X17online exclusively:

    "Rachel was joking with Nicole about her December wedding, saying Nicole should wait to get married until after Rachel has the baby! They laughed, but Rachel got a little worried when Nicole started talking about what it's like to go through labor."

Zoe and husband Rodger Berman, whose desire to have a baby dominated much of the last season of her show, The Rachel Zoe Project, are said to be expecting their little bundle of joy in February. Rumor has it that Rachel is carrying a little baby boy.

Nicole and her former stylist became close when Rachel was dressing the budding fashionista in 2004, but the two soon had a falling out. They reconciled a couple of years ago and now it seems like the girls are the best of friends again!

Think Rachel will debut her barely-there baby bump at Nicole's December wedding?