Grey's Anatomy and Scandal creator Shonda Rhimes announced on Twitter Sept. 18 that she has welcomed her third child, a baby girl. Credit: Frederick M. Brown/Getty

Shonda Rhimes is now a proud mother of three! The Grey's Anatomy and Scandal creator announced on Twitter Wednesday, Sept. 18 that she has welcomed a third child, a baby girl, into her family.

Rhimes, 43, shared the happy news by first apologizing to her fans for her absence on the social media site. "Been AWOL from Twitter. I totally have a good reason: TINY HUMAN #3 is here and she's perfect!" she tweeted. "Babies are good. Life is good. #2shows3kids." No other details on the baby were immediately available.

Rhimes is already mom to two daughters. She adopted Harper in June 2002 and Emerson in February 2012.

The TV producer confirmed to Us Weekly exclusively in April 2012 that she adopted Emerson through a domestic adoption and had long been planning to give Harper a sibling. "I've been writing adoption into story lines on my shows and only a few people close to me knew about my plans," Rhimes told Us. "I think the response was 'oh my goodness' from a lot of people."

At the time, she also shared an exclusive photo with Us of her daughter's pink nursery. "This is a happy time," Rhimes said. "I feel so lucky."