Sarah Chalke Welcomes Second Child

07/24/2016 05:14 pm EDT

Sarah Chalke and fiancé Jamie Afifi welcomed their second child, Us Weekly confirmed. The former TV doctor told Us that they welcomed their daughter, Frankie, two and a half months ago. The couple named their daughter after Chalke's grandfather.

The couple is also parents to 6-year-old son Charlie.

"I'm madly in love with my kid," Chalke told Us about her newborn. "It's been really fun."

"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 says. "And I'm like, 'Why am I lying about my daughter's age?'"

Chalke currently voices Beth Smith on Adult Swim's animated comedic sci-fi series Rick and Morty. She admitted that during her pregnancy recording her lines was sometimes a challenge and fully blames 'pregnancy brain.'

"Pregnancy brain — that's a real thing!" she said. "That's a real thing, which is the nice thing about doing animation versus live-action, is you don't have to memorize your lines — you can just read it. But then it's really embarrassing when you forget your lines, and they're just in front of you."

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