'Catastrophe' star Rob Delaney expecting baby with wife Leah

Rob Delaney and his wife, Leah, are expecting a new baby. 

The Catastrophe star revealed his wife is pregnant via Twitter on Saturday morning, in a post supporting those marching in the U.K. for the National Health Service. The news comes five months after the pair's 2-year-old son, Henry, died of a brain tumor in January. 

"Just had 2 typically wonderful @NHSEnglandLDN midwives visit my pregnant wife & I for a home birth assessment. Love to all marching for the NHS today. See my sad love letter to the NHS below," he wrote alongside a video of himself speaking about how the NHS made sure he and Leah didn't have to add financial stress to their lives as they dealt with the death of their young son. 

Henry was diagnosed with a brain tumor in 2016 and underwent surgery to remove it in early 2017, however the cancer returned that fall. In early February, Delaney announced in an emotional note to fans that Henry had died a month earlier. He and Leah are also parents to two other sons. 

"Henry was a joy. He was smart, funny, and mischievous and we had so many wonderful adventures together, particularly after he'd moved home following fifteen months living in hospitals," the comedian wrote, encouraging his followers to donate to the Rainbow Trust and Noah's Ark Hospice to help other families in the U.K. with sick children. 

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Rob Delaney out and about
Rob Delaney in the press room at the Virgin TV British Academy Television Awards 2017 held at Festival Hall at Southbank Centre, London. PRESS ASSOCIATION Photo. Picture date: Sunday May 14, 2017. See PA story SHOWBIZ Bafta. Photo credit should read: Ian West/PA Wire (Photo by Ian West/PA Images via Getty Images)
HOLLYWOOD, CA - APRIL 20: Actor Rob Delaney attends the Amazon Studios Emmy For Your Consideration Event at Hollywood Athletic Club on April 20, 2017 in Hollywood, California. (Photo by Phillip Faraone/Getty Images for Amazon Studios)
Aisling Bea and Rob Delaney in the press room at the Virgin TV British Academy Television Awards 2017 held at Festival Hall at Southbank Centre, London. PRESS ASSOCIATION Photo. Picture date: Sunday May 14, 2017. See PA story SHOWBIZ Bafta. Photo credit should read: Ian West/PA Wire (Photo by Ian West/PA Images via Getty Images)
JIMMY KIMMEL LIVE - 'Jimmy Kimmel Live' airs every weeknight at 11:35 p.m. EST and features a diverse lineup of guests that includes celebrities, athletes, musical acts, comedians and human-interest subjects, along with comedy bits and a house band. The guests for Tuesday, April 18 included Katherine Heigl ('Unforgettable'), Rob Delaney ('Catastrophe') and musical guest Dreamcar. (Randy Holmes/ABC via Getty Images) ROB DELANY
HOLLYWOOD, CA - APRIL 20: Actors Sharon Horgan and Rob Delaney attend the Amazon Studios Emmy For Your Consideration Event at Hollywood Athletic Club on April 20, 2017 in Hollywood, California. (Photo by Phillip Faraone/Getty Images for Amazon Studios)
Rob Delaney attending the Royal Television Society Programme Awards. Grosvenor House Hotel, Park Lane. PRESS ASSOCIATION Photo. Picture date: Tuesday 21st March, 2016. See PA Story SHOWBIZ Awards. Photo credit should read: Ian West/PA Wire (Photo by Ian West/PA Images via Getty Images)
LOS ANGELES - SEPTEMBER 19: Michael Weatherly and Rob Delaney chat with James Corden on 'The Late Late Show with James Corden,' Monday, Sept. 19th (12:35 PM-1:37 AM ET/PT) On The CBS Television Network. (Photo by Terence Patrick/CBS via Getty Images)
WEST HOLLYWOOD, CA - SEPTEMBER 18: Rob Delaney arrives for Amazon's Emmy Celebration at Sunset Tower Hotel on September 18, 2016 in West Hollywood, California. (Photo by Gabriel Olsen/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 18: Actors Rob Delaney and Sharon Horgan attend the 68th Annual Primetime Emmy Awards at Microsoft Theater on September 18, 2016 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
WEST HOLLYWOOD, CA - SEPTEMBER 16: Comedian Rob Delaney attends Variety and Women in Film's Pre-Emmy Celebration at Gracias Madre on September 16, 2016 in West Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
LONDON, ENGLAND - JUNE 05: Rob Delaney, accepting the Best Comedy award on behalf of 'Catastrophe', at the The South Bank Sky Arts Awards at The Savoy Hotel on June 5, 2016 in London, England. (Photo by John Phillips/Getty Images)
LONDON, ENGLAND - APRIL 24: Rob Delaney arrives for the British Academy Television Craft Awards at The Brewery on April 24, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
LONDON, ENGLAND - APRIL 24: Rob Delaney arrives for the British Academy Television Craft Awards at The Brewery on April 24, 2016 in London, England. (Photo by John Phillips/Getty Images)
NEW YORK, NEW YORK - APRIL 06: Creator/Actor Rob Delaney attends the 'Catastrophe' New York Screening at Crosby Street Hotel on April 6, 2016 in New York City. (Photo by Mark Sagliocco/Getty Images)
NEW YORK, NEW YORK - APRIL 06: Rob Delaney and Sharon Horgan attend 'Catastrophe' New York screening at Crosby Street Hotel on April 6, 2016 in New York City. (Photo by Steve Zak Photography/FilmMagic)
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"I am astonished by the love-in-action displayed by Henry's mom and his brothers. They are why I will endeavor to not go mad with grief. I don't want to miss out on their beautiful lives. I'm greedy for more experiences with them," Delaney continued. "The NHS nurses and doctors and the home carers and charity workers who helped our family survive Henry's illness will be my heroes until the day I die. I am desperately sad right now, but I can say with authority that there is good in this world."

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