Awesome footage of a man surprising his mother on her birthday with the amazing news that he's going to be a dad.

The video, filmed in Portsmouth, UK in August, shows Ashley, 36, announcing the pregnancy to his mum and day buy wearing a t-shirt that read "This Guy Is Going To Be A Dad."

He later wrote online: "It was my mother's birthday and I visited their house to give a VERY special surprise - they thought that they were just posing for a photo and didn't know that I was actually videoing."

There's a sweet backstory to the clip too.

"My mother has longed to be a grandma for many years, my step-dad to be a grandfather, but this news came as a complete shock to them both, they genuinely were not expecting it at all," he continued writing.

"Alexandra (from Sweden) and I (from the UK) met 5 years ago in Denmark, 3 years ago she moved to live in England with me in the South West and we have been happy ever since, so much so that in March this year I proposed to Alexandra by the lakeside in Central Park whilst on holiday in NYC."