Helen Skelton 's ex husband Richie Myler alledgedly met his new girlfriend Stephanie Thirkill when his wife was six months pregnant.
Both insist they did not start a relationship until Richie had split from Helen.
The Countryfile presenter, 38, revealed on social media last month that the rugby player, 31, left their family home after nine years of marriage, reports the Mirror.
It was then revealed Richie had started a relationship after the split with 31-year-old woman named Stephanie Thirkill - who is the daughter of the multi-millionaire president of his club Leeds Rhinos.
Richie plays as a scrum-half and fullback for the Leeds Rhinos.
Their split comes just four months after the pair welcomed their third child, Elsie Kate, with the pair also being proud parents to sons, Ernie, six, and Louis, four.
According to The Sun, Richie and Stephanie reportedly met each other during a rugby dinner in Autumn last year. Helen was in the third trimester of her pregnancy.
Mirror have contacted reps for comment.
Former Blue Peter star Helen shared the news of their breakup on Instagram last month, writing: "Very sad to say that Richie and I are no longer a couple.
"He has left the family home. We will be doing our best to co-parent our small children."
Helen and Richie married in December 2013 but split last month.
