McBusted star Harry Judd has revealed he went through fertility treatment with wife Izzy Johnston to conceive their first child.
The 29-year-old drummer, who announced last month that he was set to become a father, said he felt "blessed" after the heartache of a miscarriage last year.
Johnston, who was diagnosed with polycystic ovaries in her 20s, said it was "impossible" to answer people when they asked if she wanted to have children and it "felt like my heart was breaking every time".
In an interview with Hello! magazine, Judd said: "You feel like you are never going to be the ones who get to say, 'We are having a baby'. That is why we feel so blessed now.
"In an ideal world when you're ready to start a family you hope you will conceive in the first few months of trying.
"We were like, no, no we won't need IVF, it won't be us. IVF was like something you didn't talk about. We thought it would be fine."
Johnston said: "Every baby is a miracle but we do feel so very lucky.
"I never wanted to stop believing that we would have a family. But you do feel like someone has pressed pause on your life and you can't go anywhere."
Judd, who won the 2011 series of Strictly Come Dancing, and Johnston got married in December 2012. They met when the former Escala violinist joined McFly's 2005 concert tour, and got engaged in May 2012.
Describing the moment the couple watched a scan as the embryo was implanted, Johnston, 31, said: "It was such a clinical environment but there was such magic in the air."
The couple, who do not know whether they are having a boy or a girl, are expecting their baby in January.
:: Read the full interview in Hello! out now.