Alec Baldwin's wife Hilaria announced on Thursday that the couple is expecting a baby girl.
Mrs. Baldwin broke the news to her follows through her Twitter account stating: "So happy about our little girl! Thank you all for the happy wishes."
The gender revelation changes the previous belief that she was having a boy.
Mrs. Baldwin, a former yoga instructor, told Extra in February that she came up with multiple names for a boy, but only one just in case it turned out to be a girl.
She also added that this will likely not be the first child she has with her husband.
"I want to have at least one of each," Hilaria said, "so whatever this is going to be, I want to have the next one."
The couple were married in June 2012 and first learned that they were expecting a child in December, according to The Daily Mail.
They first alerted the media to the pregnancy news in February when Mrs. Baldwin appeared on The Rachel Ray Show and talked about her husband's name for a boy.
"[Alec] had the idea for Massimo the other day," Mrs. Baldwin said on the program. "It's a lovely name, I just don't know. That's a very big name for a very little baby. We have a different idea almost every single day."
She added that it is not that simple for her to think of a name and that she might have to wait till the child is born before she can make the final say.
"I think you actually have to look at it once it pops out and say, 'Who are you? What is your name?'" Mrs. Baldwin said.
The new baby will already have a sibling with 17-year-old half-sister-to-be Ireland, Mr. Baldwin's daughter with former wife Kim Basinger.
Ireland shared her own excitement over the news on Twitter stating: "I'm going to be a big half sister. Woah."
The couple's baby girl is expected to arrive in late summer.