Shark attack survivor Bethany Hamilton has revealed that she is expecting her first child – a baby boy.

The championship surfer has revealed that she is pregnant with her first child with husband Adam Dirks in a video released Sunday.

The 25-year-old Soul Surfer author says, "We have a little surprise for you.. baby on board!"

Her youth minister husband chimes in, "She's pregnant, yes!"

Hamilton, who is 22 weeks along, states: "It's been a pretty crazy last four months, finding out that we're going to be parents and life's going to be changing. [We're] starting to prep for bringing a new little being into the world."

Hamilton continues: "Once the belly's pretty big, maybe [I'll] just mellow it out and spend more time swimming, just enjoying the ocean and doing other activities.

"I've been thinking about it, but I often forget that I have one arm," Hamilton shares. "When I think about it, a squirming baby and changing the diaper ... I think how I live life, just adjust and adapt to different things, especially things that are a lot easier with two arms."

She continues, "There's going to be things that will be very challenging with one arm, but I'll just have to find my own way to take care of this baby. Of course, I'll have Adam to help, but if he's out and about busy, I'll have to ... figure it out and be creative."

Dirks says, "The early days of life we're going to have to find the balance. Bethany is going to be feeding the baby and taking care of it, and it's really essential for her to be able to do that.

"As we start traveling more, getting into surfing, I know I'm going to be there to support my wife and support our family and do what I can ... changing diapers on the beach while Bethany is out there surfing some gnarly wave. I'm all for that and I'm just going to be really stoked to be a dad!"

The pro-surfer lost her left arm in a shark attack at the age of 13. She has been in inspiration to millions, who have read story.

Hamilton is a committed Christian and her story was turned into the movie, Soul Surfer, in 2011 starring Dennis Quaid, Helen Hunt and AnnaSophia Robb, with Carrie Underwood playing a minor role.

Hamilton credited her faith with keeping her grounded despite her success.

"I have good and bad days, and I have my struggles just like you do, and I need to keep my hope and trust in the same gift that's available for all of us," she said in an interview last year.