She married a Dutch-born fighter with whom she had three children. Her two eldest children have died, but she reportedly gave birth at a refugee camp in northeastern Syria at the weekend.
Since she was discovered, Begum has faced criticism for a lack of remorse, and an apparent reluctance to disavow Isis teachings.
When asked about the enslavement and rape of Yazidi women by jihadist fighters, she replied yesterday: "Shia do the same in Iraq." Later she likened the deaths of 22 innocent people in the terror attack on an Ariana Grande concert in 2017 to the "women and children" being bombed in Baghuz, where Isis fighters are making their last stand.
"I do feel that it's wrong that innocent people did get killed," she said. "I just want forgiveness really, from the UK," she added. "Everything I've been through, I didn't expect [that] ... I don't want to lose this baby as well."
She insisted she did not ask to be the subject of international media attention over her Isis move. "The poster girl thing was not my choice."