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Surprise! Former child star Soleil Moon Frye is expecting her fourth child, she confirmed on Nov. 14.

"Excited to share some big news. Feeling beyond blessed," she tweeting along with a photo of herself holding a positive pregnancy test.

Later that day, Soleil, 39, publicly debuted her bump at the 2015 Baby2Baby gala in Culver City, California, with husband Jason Goldberg by her side.

"I can't hide it anymore!" she told People at the benefit event -- which was also attended by Jessica Alba, Gwen Stefani, Kerry Washington and more A-listers -- adding that she and her producer husband, who just celebrated 17 years of marriage in October, were floored by their pregnancy news.

"We were so surprised by this amazing, little miracle, that I think, now, we're just like, 'let's keep the surprises going,'" Soleil, who's about 13 or 14 weeks along, told the magazine. "This was definitely a really happy surprise. It was not something we were planning on, and yet, we could not be more excited and thrilled."

The actress -- who's also mom to daughters Jagger, 10, and Poet, 7, and son Lyric, 20 months -- told E! News that she and Jason aren't planning to find out baby No. 4's gender before she gives birth next year.