Rachel Uchitel Look at My New Baby ... & My Post-Baby Body!

6/5/2012 11:55 AM PDT
Just three weeks after giving birth, former Tiger Woods mistress numero uno Rachel Uchitel showed off her brand new baby girl -- and her fab post-pregnancy body -- in Napa on Tuesday.

The 37-year-old new mom, husband Matt Hahn and their little bundle of joy, Wyatt Lilly, looked like one big happy faithful family as they strolled through Northern California together.

Mistress to mother ... in three short years.