United Kingdom, March 4 -- Ayda Field Williams felt like a failure for not carrying her baby when she used a surrogate.

The actress is married to pop star Robbie Williams and the couple have four children, Teddy, 12, Charlie, 10, Coco, six, and five-year-old Beau, together.

For her youngest two children, the couple used a surrogate to carry them and deliver them safely in the world.

The 45-year-old star has now bravely admitted that she felt like a "failure" at the time for not being able to be pregnant and carry her own baby.

Speaking on the first episode of 'Loose Women: The Podcast', she said: "I remember I had a friend that was pregnant at the same time and I felt deep shame that she got to be pregnant and I wasn't ... I felt like...