“I didn’t plan to be a lone parent, but after a family bereavement at 40 I realised the clock was ticking.

Naked in cwmbran-90

“But unless you’ve been 40 years old without a child you can’t know how it feels.” She admits to a '’lot of soul searching’’ before going ahead, but says, ''The twins were as far from being an accident as is possible.

It was a painful business, emotionally and physically.

Eadie was born in February 2014, with Jo’s mum acting as birth partner, and in January of this year, Jo underwent IVF again and is now pregnant with Eadie’s full brother.

“It was really important to me that Eadie had a sibling to share her background with,” she says.

She says: “Even as a child I never expected to have my own birth children, but to take on a child from care.

My brother was an adopted child and so it seemed normal to me, although - as far as I know – there is no reason why I should have not had children naturally.According to new figures from the Human Fertilisation and Embryology Authority (HFEA) this week, there has been a 22 per cent hike in the number of women choosing to go through IVF alone in just one year, marking a 226 per cent increase since 2006.These new Solo Mums (and occasionally dads) are more than just a statistical quirk; in 2013, the year for which figures are most recently available, 952 single mothers-to-be registered at IVF clinics, says the HFEA.Dr Sophie Zadeh, a researcher at the Centre for Family Research at Cambridge University specialising in new family forms says good parents come in all shapes and sizes.“Our research has consistently shown that it’s not the structure of families that’s the most important, but the quality of parenting and parent-child relationships,” she says.More controversially, others blame the stereotypical career woman, putting relationships and families on the back-burner while she concentrates on securing promotions and partnerships.