What a week for Marissa Mayer.
The Yahoo CEO announced on Thursday that she has given birth to identical twin girls.
"Zack and I are excited to announce that our identical twin girls were born early this morning," Mayer wrote on Twitter, referring to her husband, Zachary Bogue. "Our whole family is doing great!"
The announcement comes a day after Yahoo said it would spin off its core Internet advertising and products business, instead of going forward with a plan to spin off its stake in the Chinese e-commerce company Alibaba, worth around $30 billion.
When Mayer announced the pregnancy in September, she was criticized by some because she said she was only "taking limited time away and working throughout." When Mayer gave birth to her first child, a son, three years ago, she took two weeks off. Then she had a nursery built into her office, according to Business Insider. Mayer has said she'll approach this pregnancy like her first one, so she may take off the same amount of time.
Yahoo would not disclose anything else about her pregnancy or her plans for maternity leave.
Parental leave has been a big topic of discussion in Silicon Valley this year. In August, Netflix said it would offer unlimited parental leave for an entire year after a baby is born. Facebook CEO Mark Zuckerberg, who announced the birth of his daughter Max earlier this month, said he'd be taking a two-month leave. In November, the company expanded its four-month parental leave policy to all its full-time employees, regardless of gender or location.
Mayer's news comes at a tricky time for Yahoo. The company and Mayer herself have been under increasingly intense scrutiny, as impatient investors examine her efforts to turn around the troubled company.
On Wednesday, hours before giving birth, Mayer was explaining to the press the thinking behind Yahoo's new spin-off plan.