Credit: Mike Coppola/

Mazel Tov!

A little over a year after tying the knot with beau Jared Kushner, 30, in a private Jewish ceremony in October 2009, Ivanka Trump is pregnant with their first child.

"I have been wanting to share some amazing news with you all for some time... I'm pregnant!" the Celebrity Apprentice co-host and jewelry designer, 29, wrote on her Twitter account Friday. "Jared and I couldn't be more excited." The mom-and-dad-to-be stepped out in NYC on Thursday night, catching a special screening of No Strings Attached, hosted by the Cinema Society and DKNY Jeans with DeLeón Tequila.

Adds a source, "She's due this summer."

UPDATE: Ivanka's famous mogul dad Donald Trump tells of the news: "I am very happy for Ivanka and Jared. They are wonderful young people!"

Trump herself told last year that newlywed life was going great.

"It's the best -- I love it," she said, adding, her favorite part was "coming home everyday to your best friend. That's what I love the most."