Harry is now 11 months old and a happy and healthy baby.
Around horses all their lives, having a newborn has not really changed the couple’s lifestyle when it comes to early starts.
They have settled into life as parents with ease.
“Ben’s an amazing dad, he has been from day one and he not only supports Harry but he supports me too,” Thornton said.
“He’s so patient with the both of us and that’s something I’ve always loved about him and having Harry has only really enhanced that.
“My favourite thing is when Ben walks in the door after track work and Harry’s face lights up when he sees him and seeing how much Ben means to him is the most beautiful thing in the world to me.”
Thompson added: “Steph’s been incredible - no surprise, given how she is with her animals, she’s somewhat a natural mum and she’s been amazing.
“It feels like Harry has fitted into our lifestyle very easily and I’ve been blessed with a little boy who sleeps and eats very well so we’re pretty lucky.
“It’s probably a bit of a cliché but it’s the best thing that’s happened to Steph and I.”
As a tough fighter like his mum and dad, the inevitable question is whether Harry will follow his parents into the riding ranks sometime in the future.
“I’d be very happy for him at this stage for him to ride , I think it’s exciting thinking about it, Steph maybe not so much, but the way he’s heading he might be a bit bigger than his Mum and Dad,” Thompson said with a laugh.
Thornton added: “If I had my way, I would probably keep him out of the jockey’s room - in all honesty he can be whatever he wants to be and we’ll support him no matter what.
“If he wants to go out there and be a jockey, then I think deep down I would love to see that.”