Before the fertilisation watchdog announced it was to challenge the High Court ruling, widow Beth Warren had told ITV News she was "elated" at a judge saying she could preserve her late husband's sperm.
She said: "It's absolutely amazing. I knew it could go either way. I am elated.
"Warren's family and friends have told me how proud he would have been of me, and that means a lot.
"Warren was such a fighter, he fought the brain tumor as hard as he possibly could, he stayed positive. We tried and he taught me how to be a fighter."
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