The former SCRUBS star and her lawyer fiance Jamie Afifi welcomed daughter Frankie in early May (16), and Sarah confirmed the news by gushing over the little one to Us Weekly, saying, "I'm madly in love with my kid. It's been really fun."

Sarah named little Frankie after her grandfather and admits she's having so much fun as a mother-of-two that she's continuously losing track of time.

"It's really weird - it's going so fast that the other day, someone asked me how old Frankie is, and I gave a number that's two weeks younger," she confessed. "And I'm like, 'Why am I lying about my daughter's age?'"

Sarah and Jamie are already parents to six-year-old son Charlie.