Radio presenter Fifi Box is raising awareness of the joy that donor conception brings to single women by announcing the news that she is pregnant with her second child.

The 41-year-old took to Instagram to make the announcement.

In the post, Box revealed that she has undergone IVF with an anonymous sperm donor.

“After a series of egg retrievals and freezing, last year I started the process to become pregnant via an anonymous donor,” she wrote.

Fifi Box is already mum to Trixie, whose father is former Ironman Grant Kenny, who was born in 2013.

The pair split after a brief romance in 2012.

Fifi shared in her post just how appreciative she was to be expecting a second baby.

“I know the value of this miracle because I have seen first hand the heartbreak, tears and sacrifices so many women and couples suffer on their IVF journeys and my heart goes out to those who are facing that pain and struggle,” she wrote.

“It is not lost on me that I am one of the lucky ones.”

Opening up about her fertility journey on The Project, Fifi was understandably emotional.

“It’s just so good to be able to talk about it because it’s been a really private journey.”

She told that panel that she had decided to try for a second child nearly three years ago but had been given “a very rude shock”.

“I went to the clinic, I think most women in their late 30s would know that when you walk in to see an IVF specialist and you’re shown the graph, that gives you a very rude shock about your chances.”