Katherine Heigl shares pregnancy ultrasound and baby's sex

Katherine Heigl took to her blog just hours after confirming her pregnancy to share more details about the big announcement, including an ultrasound scan of her little boy. The 37-year-old actress opened up about the family's "very exciting news" on Thursday (June 23) in a blog post that showed a series of pictures - one of which showed blue knitted booties with the caption "Blue is for...BOY!"

"We are expecting a third addition to our tribe,” she began her message. "It was totally unexpected but thrilling none the less."

TAP TO VIEW GALLERYKatherine Heigl's baby scan photo Katherine proudly shared a baby scan photo on her blog

Katherine said that her daughters, Naleigh, seven, and four-year-old Adelaide - who she adopted with husband Josh Kelley in 2009 and 2012, respectively - are both "over the moon and cannot wait to spoil their new sibling rotten".

She continued: "The whole pregnancy thing is new to me but the thrill of having a baby is not. We've known for a while that we wanted to add to our family and frankly didn't really care how we chose to do that. We were considering adoption again, fostering, or pregnancy if possible. Seeing as I have never been pregnant and as my OB/GYN reminded me last year, I'm of advanced maternal age, I wasn't sure pregnancy was even in the cards for us. Turns out it was very much in the cards!

Katherin Heigl getting her ultrasound The star also posted a picture taken during the ultrasound

"…This is truly an amazingly blessed time, waiting for the child you've been dreaming of to make their appearance. Though I've never been a particularly patient person, my experience of waiting for Naleigh taught me a lot in that department. So I will wait and eagerly anticipate, hopefully with grace, gratitude and a good attitude (ummm pregnancy hormones are real people.)

"Maybe this time the waiting won't be so hard because I'll have all of you to share the laughter, tears and joys of my experience with. So stay tuned…XOXO, KT."

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