United Kingdom, May 27 -- Sinitta "had a reason to live" when she adopted her children.

The 61-year-old singer "wanted to curl up in a ball and shut the world out" after she suffered miscarriages and three failed attempts of IVF - a common procedure where eggs are fertilised with sperm in a laboratory and then an embryo is put in the womb to help women get pregnant.

However, Sinitta thinks her previous heartbreaks were meant to be, as her world turned joyous when she and her ex-husband Andy Willner welcomed Zac, 19, and Magdalena, 18, into their lives in 2007.

She told OK! magazine: "As I get older, I do tend to reflect on the sad things that happened in the past.

"Back then, I had pushed all the painful things to the back of my mind....