Mariam Ibrahim is now in a safe house after a court ordered the mother of two to be freed.
Dr Khataza Gondwe from Christian Solidarity Worldwide tells Premier why her sentence was quashed.
Sudan faced international condemnation after the Christian woman was sentenced to death and forced to give birth while shackled to a prison floor.
Meriam Ibrahim was being held in Omdurman Federal Women's Prison in North Khartoum, after being found guilty of apostasy and adultery for marrying a Christian man in May.
She was sentenced to 100 lashes for adultery and was due to be hanged for apostasy.
The 27 year-old was also forced to deliver her baby at the hospital wing in the prison while her legs were kept in heavy chains during the birth.
A campaign run by Amnesty International, calling on Sudan to release Meriam immediately and unconditionally reached its target of 160,000 signatures in the UK alone last month.
The Archbishop of Canterbury, Most Revd Justin Welby had also called on Sudan to release Ms Ibrahim.
Ms Ibrahim was arrested last year after being accused of adultery by a family member who said her marriage was invalid due to her husband being a Christian.
She denied the charges claiming she was raised as an Orthodox Christian while her Muslim father was absent during her childhood.
Those charged with apostasy in Sudan have three days to renounce their religion and follow Islam.
Ms Ibrahim first appeared before the court in Khartoum, on May 11th.
When on May 15th she refused to renounce her Christian faith, the death sentence was confirmed.