Ivanka Trump Pregnant Again! Donald Trump's 'Celebrity Apprentice' Daughter Expecting Second Child with Hubby Jared Kushner, Tweets 'Arabella will be a Big Sister this Fall!'

Reports confirm that the beautiful Ivanka Trump, entrepreneur and heiress to millionaire business mogul Donald Trump, is pregnant again! The "Celebrity Apprentice" starlet officially announced the happy baby news through Twitter on Thursday, April 11, writing that daughter Arabella (who turns two in July) "will become a big sister this fall." This will be Trump's second child with hubby Jared Kushner.

The New York Post broke news of the pregnancy early Thursday morning. An inside source told the tabloid that she's expected to give birth sometime this fall - "Ivanka is starting to tell friends and family about her pregnancy."

Following such baby bump rumors, Trump tweeted:

@IvankaTrump: "Jared and I and are so excited that Arabella will become a big sister this fall. Thanks for all your good wishes! xo Ivanka."

The stunning fashion designer married 32-year-old Kushner (a well-known buisnessman) in October 2009. They welcomed their first daughter Arabella Rose in July 2011. Trump announced the delivery of baby Arabella on Twitter at the time of her birth.

Several fans are delighted by the news:

@HRdiva_NY: "Congrats to the best mom! Arabella must be excited. She's gonna be a huge help as big sister. #mommyslittlehelper."

@Cyn190: "YAY!! Congratulations!! #XOXO Arabella will ROCK the big sister gig!!

@IvankaTrumpFan: "Everytime you give us news like this... I swear i cry! Congratulations Jared, Ivanka and soon to be big sister Bella! <3."

The "All-Star Celebrity Apprentice" boardroom member recently told Forbes that she would "love to have three children, maybe four."

Congrats to the happy couple on such exciting news!